Started as single run within Anpass for Typ=10
Settings : Gradient limit=10.00n, maximum iterations=199, with clampings
0: pure eval, 1: goal function call, 2: goal function gradient, 3: Hessian
Hint : Single-sided gradient formula used

Real Hessian Matrix H at start : 
1329.942423, 479.995999
479.995999, 200.000008

RMS value of diagonal matrix entries : 950.99
RMS value of non-diagonal entries : 480.00
Ratio of RMS values : 1.981:1

Real inverse Hessian Matrix iH at start : 
 0.005619, -0.013486
-0.013486,  0.037366

Eigenvalues of real damped start iH :  1.000000000,  1.000000000
Eigenvalues of real iH at start :  0.042321292,  0.000663872
Eigenvalues of real H at start : 1506.313662441, 23.628768081

Start values : f=24.200, |g|=232.85
X : -1.200000000,  1.000000000
Initial step size t=0.125
Hint : step size t reduced to 37.11m before linear search due to large parameter steps.
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 1 (11 calls) :
Current goal function and gradient : f=4.133, reduction df=20.07, |g|=232.85
X : -1.027364330,  1.070466284
G : -215.586700191, -87.998000000
S : 215.586700191, 87.998000000
Angle between -G and S is -0.00.
Angle between old and new gradient is 0.00.
Current parameter steps : |dx|=0.19, max(dxi)=0.17 for number i=1, min(dxi)=70.47m for number i=2
Current steps in linear search : i=6, step size is t=0.80m, clampings=5
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 2 (15 calls) :
Current goal function and gradient : f=4.125, reduction df=8.05m, |g|=3.67
X : -1.029474493,  1.067470924
G :  2.113265487,  2.999763435
S : -2.113265487, -2.999763435
Angle between -G and S is 0.00.
Angle between old and new gradient is 165.79.
Current parameter steps : |dx|=3.66m, max(dxi)=3.00m for number i=2, min(dxi)=2.11m for number i=1
Current steps in linear search : i=0, step size is t=1.00m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 3 (25 calls) :
Current goal function and gradient : f=1.503, reduction df=2.62, |g|=1.78
X : -0.029474493,  0.067470924
G : -0.898975060,  1.532638293
S :  0.898975060, -1.532638293
Angle between -G and S is 0.00.
Angle between old and new gradient is 52.76.
Current parameter steps : |dx|=1.41, max(dxi)=1.00 for number i=1, min(dxi)=1.00 for number i=1
Current steps in linear search : i=0, step size is t=1.88, clampings=3
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 4 (35 calls) :
Current goal function and gradient : f=1.052, reduction df=0.45, |g|=13.38
X : -0.023682955,  0.006906022
G : -1.273962260, 13.322435692
S :  1.273962260, -13.322435692
Angle between -G and S is 0.00.
Angle between old and new gradient is 8.39.
Current parameter steps : |dx|=60.84m, max(dxi)=60.56m for number i=2, min(dxi)=5.79m for number i=1
Current steps in linear search : i=6, step size is t=4.55m, clampings=4
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 5 (39 calls) :
Current goal function and gradient : f=1.002, reduction df=49.74m, |g|=2.36
X :  0.013272300, -0.016730141
G : -1.987258149,  1.271027831
S :  1.987258149, -1.271027831
Angle between -G and S is 0.00.
Angle between old and new gradient is 34.51.
Current parameter steps : |dx|=43.87m, max(dxi)=36.96m for number i=1, min(dxi)=23.64m for number i=2
Current steps in linear search : i=0, step size is t=18.60m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
 8.904078, -5.312920
-5.312920, 200.000000

RMS value of diagonal matrix entries : 141.56
RMS value of non-diagonal entries : 5.31
Ratio of RMS values : 26.645:1

Current real inverse Hessian Matrix : 
 0.114117,  0.003031
 0.003031,  0.005081

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 125.75%
Hint : Angle between S via iH and real iH is 0.67. Length ratio is 17.09:1.
Current eigenvalues of real iH :  0.114201137,  0.004996313
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 6 (44 calls) :
Current goal function and gradient : f=0.953, reduction df=49.48m, |g|=3.87
X :  0.024179386,  0.002837511
G : -1.883612196, -3.379259055
S :  1.883612196,  3.379259055
Angle between -G and S is 0.00.
Angle between old and new gradient is 95.44.
Current parameter steps : |dx|=22.40m, max(dxi)=19.57m for number i=2, min(dxi)=10.91m for number i=1
Current steps in linear search : i=1, step size is t=5.79m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 7 (48 calls) :
Current goal function and gradient : f=0.869, reduction df=83.43m, |g|=2.02
X :  0.094494345, -0.013288190
G : -1.973414746,  0.452573629
S :  1.973414746, -0.452573629
Angle between -G and S is 0.00.
Angle between old and new gradient is 64.86.
Current parameter steps : |dx|=72.14m, max(dxi)=70.31m for number i=1, min(dxi)=16.13m for number i=2
Current steps in linear search : i=0, step size is t=35.63m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 8 (55 calls) :
Current goal function and gradient : f=0.811, reduction df=58.80m, |g|=4.55
X :  0.099759792,  0.010795017
G : -0.971064610, -4.441474286
S :  0.971064610,  4.441474286
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.92.
Current parameter steps : |dx|=24.65m, max(dxi)=24.08m for number i=2, min(dxi)=5.27m for number i=1
Current steps in linear search : i=3, step size is t=5.42m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 9 (59 calls) :
Current goal function and gradient : f=0.747, reduction df=63.22m, |g|=1.84
X :  0.158683653,  0.005313944
G : -1.834023171,  0.170600069
S :  1.834023171, -0.170600069
Angle between -G and S is 0.00.
Angle between old and new gradient is 79.00.
Current parameter steps : |dx|=59.18m, max(dxi)=58.92m for number i=1, min(dxi)=5.48m for number i=2
Current steps in linear search : i=0, step size is t=32.13m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 10 (64 calls) :
Current goal function and gradient : f=0.706, reduction df=41.12m, |g|=3.99
X :  0.161469833,  0.031575358
G : -0.421332544, -3.971311642
S :  0.421332544,  3.971311642
Angle between -G and S is 0.00.
Angle between old and new gradient is 88.83.
Current parameter steps : |dx|=26.41m, max(dxi)=26.26m for number i=2, min(dxi)=2.79m for number i=1
Current steps in linear search : i=1, step size is t=6.61m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
20.664616, -64.591933
-64.591933, 200.000000

RMS value of diagonal matrix entries : 142.17
RMS value of non-diagonal entries : 64.59
Ratio of RMS values : 2.201:1

Current real inverse Hessian Matrix : 
-5.102755, -1.647984
-1.647984, -0.527232

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 2 of 4 (50.00%)
Warning : Matrix quite bad, although already many iterations.
Normalized average entry difference in matrices : 230.40%
Hint : Angle between S via iH and real iH is 2.65. Length ratio is 0.26:1.
Current eigenvalues of real iH :  0.004528122, -5.634515645
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 11 (68 calls) :
Current goal function and gradient : f=0.684, reduction df=22.00m, |g|=2.31
X :  0.176374890,  0.023488903
G : -2.032271540,  1.102570286
S :  2.032271540, -1.102570286
Angle between -G and S is 0.00.
Angle between old and new gradient is 124.33.
Current parameter steps : |dx|=16.96m, max(dxi)=14.91m for number i=1, min(dxi)=8.09m for number i=2
Current steps in linear search : i=0, step size is t=7.33m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Hint : Start stepsize t good already before linear search.
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 12 (71 calls) :
Current goal function and gradient : f=0.659, reduction df=24.78m, |g|=1.88
X :  0.192648227,  0.045811814
G : -1.109416709, -1.521839759
S :  1.109416709,  1.521839759
Angle between -G and S is 0.00.
Angle between old and new gradient is 78.08.
Current parameter steps : |dx|=27.62m, max(dxi)=22.32m for number i=2, min(dxi)=16.27m for number i=1
Current steps in linear search : i=0, step size is t=14.67m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 13 (76 calls) :
Current goal function and gradient : f=0.636, reduction df=22.92m, |g|=2.87
X :  0.202800842,  0.038072240
G : -2.284719711,  1.741694986
S :  2.284719711, -1.741694986
Angle between -G and S is 0.00.
Angle between old and new gradient is 91.93.
Current parameter steps : |dx|=12.77m, max(dxi)=10.15m for number i=1, min(dxi)=7.74m for number i=2
Current steps in linear search : i=1, step size is t=4.44m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 14 (81 calls) :
Current goal function and gradient : f=0.499, reduction df=0.14, |g|=1.48
X :  0.421163005,  0.136890996
G : -1.346138014, -0.609188345
S :  1.346138014,  0.609188345
Angle between -G and S is 0.00.
Angle between old and new gradient is 47.29.
Current parameter steps : |dx|=0.24, max(dxi)=0.22 for number i=1, min(dxi)=98.82m for number i=2
Current steps in linear search : i=0, step size is t=0.16, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 15 (90 calls) :
Current goal function and gradient : f=0.356, reduction df=0.14, |g|=9.88
X :  0.404835421,  0.160225151
G :  5.664624902, -8.095456062
S : -5.664624902,  8.095456062
Angle between -G and S is 0.00.
Angle between old and new gradient is 106.61.
Current parameter steps : |dx|=28.48m, max(dxi)=23.33m for number i=2, min(dxi)=16.33m for number i=1
Current steps in linear search : i=5, step size is t=2.88m, clampings=2
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
134.599435, -161.938169
-161.938169, 200.000000

RMS value of diagonal matrix entries : 170.47
RMS value of non-diagonal entries : 161.94
Ratio of RMS values : 1.053:1

Current real inverse Hessian Matrix : 
 0.287391,  0.232698
 0.232698,  0.193413

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 111.12%
Hint : Angle between S via iH and real iH is 0.03. Length ratio is 2.14:1.
Current eigenvalues of real iH :  0.477796603,  0.003007460
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 16 (95 calls) :
Current goal function and gradient : f=0.324, reduction df=31.72m, |g|=0.94
X :  0.438689475,  0.201818290
G : -0.595240685, -0.731313559
S :  0.595240685,  0.731313559
Angle between -G and S is 0.00.
Angle between old and new gradient is 65.38.
Current parameter steps : |dx|=53.63m, max(dxi)=41.59m for number i=2, min(dxi)=33.85m for number i=1
Current steps in linear search : i=0, step size is t=56.87m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 17 (101 calls) :
Current goal function and gradient : f=0.307, reduction df=16.60m, |g|=3.34
X :  0.446230996,  0.196702116
G : -2.765277893,  1.875966797
S :  2.765277893, -1.875966797
Angle between -G and S is 0.00.
Angle between old and new gradient is 82.17.
Current parameter steps : |dx|=9.11m, max(dxi)=7.54m for number i=1, min(dxi)=5.12m for number i=2
Current steps in linear search : i=2, step size is t=2.73m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 18 (106 calls) :
Current goal function and gradient : f=0.272, reduction df=35.64m, |g|=0.83
X :  0.507978978,  0.240862127
G : -0.673966179, -0.481997195
S :  0.673966179,  0.481997195
Angle between -G and S is 0.00.
Angle between old and new gradient is 58.81.
Current parameter steps : |dx|=75.91m, max(dxi)=61.75m for number i=1, min(dxi)=44.16m for number i=2
Current steps in linear search : i=0, step size is t=91.62m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 19 (113 calls) :
Current goal function and gradient : f=0.249, reduction df=22.67m, |g|=4.25
X :  0.502102776,  0.248904815
G :  2.509047268, -3.434102988
S : -2.509047268,  3.434102988
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.91.
Current parameter steps : |dx|=9.96m, max(dxi)=8.04m for number i=2, min(dxi)=5.88m for number i=1
Current steps in linear search : i=3, step size is t=2.34m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 20 (118 calls) :
Current goal function and gradient : f=0.240, reduction df=8.63m, |g|=0.73
X :  0.514501881,  0.271486429
G : -0.350574529, -0.638476614
S :  0.350574529,  0.638476614
Angle between -G and S is 0.00.
Angle between old and new gradient is 51.85.
Current parameter steps : |dx|=25.76m, max(dxi)=22.58m for number i=2, min(dxi)=12.40m for number i=1
Current steps in linear search : i=0, step size is t=35.37m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
211.084748, -205.804752
-205.804752, 200.000000

RMS value of diagonal matrix entries : 205.62
RMS value of non-diagonal entries : 205.80
Ratio of RMS values : 0.999:1

Current real inverse Hessian Matrix : 
-1.442518, -1.484385
-1.484385, -1.522467

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 2 of 4 (50.00%)
Warning : Matrix quite bad, although already many iterations.
Normalized average entry difference in matrices : 359.31%
Hint : Angle between S via iH and real iH is 1.96. Length ratio is 1.36:1.
Current eigenvalues of real iH :  0.002430596, -2.967415781
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 21 (124 calls) :
Current goal function and gradient : f=0.231, reduction df=9.32m, |g|=2.72
X :  0.519621843,  0.268546554
G : -2.363029871,  1.356848609
S :  2.363029871, -1.356848609
Angle between -G and S is 0.00.
Angle between old and new gradient is 91.72.
Current parameter steps : |dx|=5.90m, max(dxi)=5.12m for number i=1, min(dxi)=2.94m for number i=2
Current steps in linear search : i=2, step size is t=2.17m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 22 (128 calls) :
Current goal function and gradient : f=0.227, reduction df=3.84m, |g|=0.72
X :  0.527468347,  0.272021059
G : -0.655047568, -0.290061208
S :  0.655047568,  0.290061208
Angle between -G and S is 0.00.
Angle between old and new gradient is 36.78.
Current parameter steps : |dx|=8.58m, max(dxi)=7.85m for number i=1, min(dxi)=3.47m for number i=2
Current steps in linear search : i=0, step size is t=11.98m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 23 (133 calls) :
Current goal function and gradient : f=0.224, reduction df=2.64m, |g|=1.29
X :  0.526341581,  0.275836509
G :  0.365708229, -1.238359603
S : -0.365708229,  1.238359603
Angle between -G and S is 0.00.
Angle between old and new gradient is 78.36.
Current parameter steps : |dx|=3.98m, max(dxi)=3.82m for number i=2, min(dxi)=1.13m for number i=1
Current steps in linear search : i=1, step size is t=3.08m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 24 (137 calls) :
Current goal function and gradient : f=0.222, reduction df=2.84m, |g|=0.73
X :  0.534353576,  0.278587057
G : -0.692652590, -0.237790179
S :  0.692652590,  0.237790179
Angle between -G and S is 0.00.
Angle between old and new gradient is 86.08.
Current parameter steps : |dx|=8.47m, max(dxi)=8.01m for number i=1, min(dxi)=2.75m for number i=2
Current steps in linear search : i=0, step size is t=11.57m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 25 (142 calls) :
Current goal function and gradient : f=0.218, reduction df=3.18m, |g|=1.49
X :  0.532754933,  0.282577199
G :  0.555834205, -1.387337490
S : -0.555834205,  1.387337490
Angle between -G and S is 0.00.
Angle between old and new gradient is 94.53.
Current parameter steps : |dx|=4.30m, max(dxi)=3.99m for number i=2, min(dxi)=1.60m for number i=1
Current steps in linear search : i=1, step size is t=2.88m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
229.588075, -213.105973
-213.105973, 200.000000

RMS value of diagonal matrix entries : 215.30
RMS value of non-diagonal entries : 213.11
Ratio of RMS values : 1.010:1

Current real inverse Hessian Matrix : 
 0.397252,  0.423283
 0.423283,  0.456021

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 94.70%
Hint : Angle between S via iH and real iH is 0.16. Length ratio is 1.31:1.
Current eigenvalues of real iH :  0.850938524,  0.002334197
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 26 (146 calls) :
Current goal function and gradient : f=0.216, reduction df=2.88m, |g|=0.71
X :  0.540453659,  0.285446782
G : -0.665684871, -0.248123966
S :  0.665684871,  0.248123966
Angle between -G and S is 0.00.
Angle between old and new gradient is 92.19.
Current parameter steps : |dx|=8.22m, max(dxi)=7.70m for number i=1, min(dxi)=2.87m for number i=2
Current steps in linear search : i=0, step size is t=11.57m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 27 (151 calls) :
Current goal function and gradient : f=0.213, reduction df=2.89m, |g|=1.42
X :  0.538959576,  0.289262558
G :  0.519465263, -1.326675031
S : -0.519465263,  1.326675031
Angle between -G and S is 0.00.
Angle between old and new gradient is 91.48.
Current parameter steps : |dx|=4.10m, max(dxi)=3.82m for number i=2, min(dxi)=1.49m for number i=1
Current steps in linear search : i=1, step size is t=2.88m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 28 (155 calls) :
Current goal function and gradient : f=0.210, reduction df=2.65m, |g|=0.70
X :  0.546356080,  0.291972026
G : -0.657826501, -0.240973308
S :  0.657826501,  0.240973308
Angle between -G and S is 0.00.
Angle between old and new gradient is 91.99.
Current parameter steps : |dx|=7.88m, max(dxi)=7.40m for number i=1, min(dxi)=2.71m for number i=2
Current steps in linear search : i=0, step size is t=11.24m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 29 (160 calls) :
Current goal function and gradient : f=0.207, reduction df=2.77m, |g|=1.41
X :  0.544883829,  0.295645362
G :  0.522871071, -1.304588051
S : -0.522871071,  1.304588051
Angle between -G and S is 0.00.
Angle between old and new gradient is 92.70.
Current parameter steps : |dx|=3.96m, max(dxi)=3.67m for number i=2, min(dxi)=1.47m for number i=1
Current steps in linear search : i=1, step size is t=2.82m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 30 (164 calls) :
Current goal function and gradient : f=0.205, reduction df=2.65m, |g|=0.68
X :  0.552147788,  0.298490439
G : -0.634730681, -0.248605137
S :  0.634730681,  0.248605137
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.71.
Current parameter steps : |dx|=7.80m, max(dxi)=7.26m for number i=1, min(dxi)=2.85m for number i=2
Current steps in linear search : i=0, step size is t=11.44m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
248.470944, -220.863115
-220.863115, 200.000000

RMS value of diagonal matrix entries : 225.54
RMS value of non-diagonal entries : 220.86
Ratio of RMS values : 1.021:1

Current real inverse Hessian Matrix : 
 0.218897,  0.241731
 0.241731,  0.271947

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 111.04%
Hint : Angle between S via iH and real iH is 0.87. Length ratio is 4.65:1.
Current eigenvalues of real iH :  0.488603897,  0.002240021
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 31 (169 calls) :
Current goal function and gradient : f=0.202, reduction df=2.62m, |g|=1.37
X :  0.550691406,  0.302090385
G :  0.515141565, -1.273348273
S : -0.515141565,  1.273348273
Angle between -G and S is 0.00.
Angle between old and new gradient is 91.00.
Current parameter steps : |dx|=3.88m, max(dxi)=3.60m for number i=2, min(dxi)=1.46m for number i=1
Current steps in linear search : i=1, step size is t=2.83m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 32 (173 calls) :
Current goal function and gradient : f=0.200, reduction df=2.31m, |g|=0.68
X :  0.557558683,  0.304587770
G : -0.638302063, -0.232127739
S :  0.638302063,  0.232127739
Angle between -G and S is 0.00.
Angle between old and new gradient is 93.21.
Current parameter steps : |dx|=7.31m, max(dxi)=6.87m for number i=1, min(dxi)=2.50m for number i=2
Current steps in linear search : i=0, step size is t=10.76m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 33 (178 calls) :
Current goal function and gradient : f=0.197, reduction df=2.53m, |g|=1.36
X :  0.556145597,  0.308003455
G :  0.519110219, -1.254783093
S : -0.519110219,  1.254783093
Angle between -G and S is 0.00.
Angle between old and new gradient is 93.91.
Current parameter steps : |dx|=3.70m, max(dxi)=3.42m for number i=2, min(dxi)=1.41m for number i=1
Current steps in linear search : i=1, step size is t=2.72m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 34 (182 calls) :
Current goal function and gradient : f=0.195, reduction df=2.59m, |g|=0.65
X :  0.563127794,  0.311006724
G : -0.597243796, -0.256893860
S :  0.597243796,  0.256893860
Angle between -G and S is 0.00.
Angle between old and new gradient is 88.75.
Current parameter steps : |dx|=7.60m, max(dxi)=6.98m for number i=1, min(dxi)=3.00m for number i=2
Current steps in linear search : i=0, step size is t=11.69m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 35 (187 calls) :
Current goal function and gradient : f=0.192, reduction df=2.37m, |g|=1.32
X :  0.561701075,  0.314456333
G :  0.504262735, -1.219237651
S : -0.504262735,  1.219237651
Angle between -G and S is 0.00.
Angle between old and new gradient is 88.74.
Current parameter steps : |dx|=3.73m, max(dxi)=3.45m for number i=2, min(dxi)=1.43m for number i=1
Current steps in linear search : i=1, step size is t=2.83m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
254.854146, -224.684430
-224.684430, 200.000000

RMS value of diagonal matrix entries : 229.07
RMS value of non-diagonal entries : 224.68
Ratio of RMS values : 1.020:1

Current real inverse Hessian Matrix : 
 0.410058,  0.460668
 0.460668,  0.522525

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 91.44%
Hint : Angle between S via iH and real iH is 0.21. Length ratio is 1.25:1.
Current eigenvalues of real iH :  0.930378700,  0.002203714
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 36 (191 calls) :
Current goal function and gradient : f=0.190, reduction df=1.86m, |g|=0.67
X :  0.567991388,  0.316511415
G : -0.637738638, -0.208352856
S :  0.637738638,  0.208352856
Angle between -G and S is 0.00.
Angle between old and new gradient is 96.87.
Current parameter steps : |dx|=6.62m, max(dxi)=6.29m for number i=1, min(dxi)=2.06m for number i=2
Current steps in linear search : i=0, step size is t=9.86m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 37 (196 calls) :
Current goal function and gradient : f=0.188, reduction df=2.35m, |g|=1.33
X :  0.566640511,  0.319646033
G :  0.525143913, -1.218560512
S : -0.525143913,  1.218560512
Angle between -G and S is 0.00.
Angle between old and new gradient is 98.19.
Current parameter steps : |dx|=3.41m, max(dxi)=3.13m for number i=2, min(dxi)=1.35m for number i=1
Current steps in linear search : i=1, step size is t=2.57m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 38 (200 calls) :
Current goal function and gradient : f=0.185, reduction df=2.99m, |g|=0.61
X :  0.573847415,  0.323459497
G : -0.538774093, -0.285087134
S :  0.538774093,  0.285087134
Angle between -G and S is -0.00.
Angle between old and new gradient is 82.83.
Current parameter steps : |dx|=8.15m, max(dxi)=7.21m for number i=1, min(dxi)=3.81m for number i=2
Current steps in linear search : i=0, step size is t=13.38m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 39 (205 calls) :
Current goal function and gradient : f=0.183, reduction df=2.11m, |g|=1.27
X :  0.572373896,  0.326958176
G :  0.491192062, -1.166271682
S : -0.491192062,  1.166271682
Angle between -G and S is 0.00.
Angle between old and new gradient is 82.08.
Current parameter steps : |dx|=3.80m, max(dxi)=3.50m for number i=2, min(dxi)=1.47m for number i=1
Current steps in linear search : i=1, step size is t=3.00m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Hint : Start stepsize t good already before linear search.
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 40 (208 calls) :
Current goal function and gradient : f=0.182, reduction df=1.40m, |g|=0.71
X :  0.576591396,  0.327730587
G : -0.702944068, -0.128740186
S :  0.702944068,  0.128740186
Angle between -G and S is 0.00.
Angle between old and new gradient is 109.42.
Current parameter steps : |dx|=4.29m, max(dxi)=4.22m for number i=1, min(dxi)=0.77m for number i=2
Current steps in linear search : i=0, step size is t=6.00m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
269.884608, -230.640558
-230.640558, 200.000000

RMS value of diagonal matrix entries : 237.53
RMS value of non-diagonal entries : 230.64
Ratio of RMS values : 1.030:1

Current real inverse Hessian Matrix : 
 0.255802,  0.294992
 0.294992,  0.345185

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 105.41%
Hint : Angle between S via iH and real iH is 0.67. Length ratio is 2.93:1.
Current eigenvalues of real iH :  0.598851617,  0.002135772
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 41 (214 calls) :
Current goal function and gradient : f=0.180, reduction df=1.50m, |g|=0.97
X :  0.575787768,  0.330811096
G :  0.246112280, -0.943410245
S : -0.246112280,  0.943410245
Angle between -G and S is 0.00.
Angle between old and new gradient is 96.66.
Current parameter steps : |dx|=3.18m, max(dxi)=3.08m for number i=2, min(dxi)=0.80m for number i=1
Current steps in linear search : i=2, step size is t=3.27m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Hint : Start stepsize t good already before linear search.
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 42 (217 calls) :
Current goal function and gradient : f=0.179, reduction df=1.37m, |g|=0.69
X :  0.580227368,  0.331739036
G : -0.679816932, -0.142091551
S :  0.679816932,  0.142091551
Angle between -G and S is 0.00.
Angle between old and new gradient is 94.42.
Current parameter steps : |dx|=4.54m, max(dxi)=4.44m for number i=1, min(dxi)=0.93m for number i=2
Current steps in linear search : i=0, step size is t=6.53m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 43 (223 calls) :
Current goal function and gradient : f=0.177, reduction df=1.55m, |g|=1.03
X :  0.579217240,  0.334981921
G :  0.306180601, -0.982952473
S : -0.306180601,  0.982952473
Angle between -G and S is 0.00.
Angle between old and new gradient is 98.62.
Current parameter steps : |dx|=3.40m, max(dxi)=3.24m for number i=2, min(dxi)=1.01m for number i=1
Current steps in linear search : i=2, step size is t=3.30m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 44 (227 calls) :
Current goal function and gradient : f=0.176, reduction df=1.25m, |g|=0.73
X :  0.582095475,  0.335381928
G : -0.720539274, -0.100137991
S :  0.720539274,  0.100137991
Angle between -G and S is 0.00.
Angle between old and new gradient is 104.68.
Current parameter steps : |dx|=2.91m, max(dxi)=2.88m for number i=1, min(dxi)=0.40m for number i=2
Current steps in linear search : i=0, step size is t=3.99m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 45 (231 calls) :
Current goal function and gradient : f=0.175, reduction df=1.29m, |g|=0.69
X :  0.582232292,  0.338628100
G : -0.029024394, -0.688642777
S :  0.029024394,  0.688642777
Angle between -G and S is 0.00.
Angle between old and new gradient is 73.87.
Current parameter steps : |dx|=3.25m, max(dxi)=3.25m for number i=2, min(dxi)=0.14m for number i=1
Current steps in linear search : i=0, step size is t=4.71m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
273.370038, -232.896917
-232.896917, 200.000000

RMS value of diagonal matrix entries : 239.51
RMS value of non-diagonal entries : 232.90
Ratio of RMS values : 1.028:1

Current real inverse Hessian Matrix : 
 0.461858,  0.537826
 0.537826,  0.631290

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 85.50%
Hint : Angle between S via iH and real iH is 0.44. Length ratio is 1.27:1.
Current eigenvalues of real iH :  1.091031721,  0.002116611
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 46 (235 calls) :
Current goal function and gradient : f=0.173, reduction df=1.23m, |g|=0.75
X :  0.585610060,  0.338950151
G : -0.747483612, -0.071268257
S :  0.747483612,  0.071268257
Angle between -G and S is -0.00.
Angle between old and new gradient is 77.69.
Current parameter steps : |dx|=3.39m, max(dxi)=3.38m for number i=1, min(dxi)=0.32m for number i=2
Current steps in linear search : i=0, step size is t=4.52m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 47 (239 calls) :
Current goal function and gradient : f=0.172, reduction df=1.22m, |g|=0.80
X :  0.585161226,  0.342245270
G :  0.108397137, -0.795798328
S : -0.108397137,  0.795798328
Angle between -G and S is 0.00.
Angle between old and new gradient is 93.63.
Current parameter steps : |dx|=3.33m, max(dxi)=3.30m for number i=2, min(dxi)=0.45m for number i=1
Current steps in linear search : i=0, step size is t=4.14m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 48 (243 calls) :
Current goal function and gradient : f=0.171, reduction df=1.21m, |g|=0.79
X :  0.588309010,  0.342371893
G : -0.787503201, -0.031678129
S :  0.787503201,  0.031678129
Angle between -G and S is 0.00.
Angle between old and new gradient is 98.55.
Current parameter steps : |dx|=3.15m, max(dxi)=3.15m for number i=1, min(dxi)=0.13m for number i=2
Current steps in linear search : i=0, step size is t=4.00m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 49 (247 calls) :
Current goal function and gradient : f=0.170, reduction df=1.18m, |g|=0.75
X :  0.588068577,  0.345434495
G :  0.058496439, -0.745119716
S : -0.058496439,  0.745119716
Angle between -G and S is 0.00.
Angle between old and new gradient is 93.43.
Current parameter steps : |dx|=3.07m, max(dxi)=3.06m for number i=2, min(dxi)=0.24m for number i=1
Current steps in linear search : i=0, step size is t=4.11m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 50 (251 calls) :
Current goal function and gradient : f=0.169, reduction df=1.17m, |g|=0.73
X :  0.591144830,  0.345755202
G : -0.729299017, -0.076031356
S :  0.729299017,  0.076031356
Angle between -G and S is 0.00.
Angle between old and new gradient is 87.70.
Current parameter steps : |dx|=3.09m, max(dxi)=3.08m for number i=1, min(dxi)=0.32m for number i=2
Current steps in linear search : i=0, step size is t=4.22m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
283.068947, -236.461932
-236.461932, 200.000000

RMS value of diagonal matrix entries : 245.08
RMS value of non-diagonal entries : 236.46
Ratio of RMS values : 1.036:1

Current real inverse Hessian Matrix : 
 0.285900,  0.338023
 0.338023,  0.404648

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 101.12%
Hint : Angle between S via iH and real iH is 0.45. Length ratio is 2.04:1.
Current eigenvalues of real iH :  0.688471919,  0.002076341
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 51 (255 calls) :
Current goal function and gradient : f=0.167, reduction df=1.15m, |g|=0.74
X :  0.590895019,  0.348861266
G :  0.059307002, -0.737401579
S : -0.059307002,  0.737401579
Angle between -G and S is 0.00.
Angle between old and new gradient is 87.87.
Current parameter steps : |dx|=3.12m, max(dxi)=3.11m for number i=2, min(dxi)=0.25m for number i=1
Current steps in linear search : i=0, step size is t=4.21m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 52 (259 calls) :
Current goal function and gradient : f=0.166, reduction df=1.14m, |g|=0.75
X :  0.593975030,  0.349097298
G : -0.745514591, -0.057131349
S :  0.745514591,  0.057131349
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.34.
Current parameter steps : |dx|=3.09m, max(dxi)=3.08m for number i=1, min(dxi)=0.24m for number i=2
Current steps in linear search : i=0, step size is t=4.13m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 53 (263 calls) :
Current goal function and gradient : f=0.165, reduction df=1.13m, |g|=0.74
X :  0.593679847,  0.352128738
G :  0.072037723, -0.739807515
S : -0.072037723,  0.739807515
Angle between -G and S is -0.00.
Angle between old and new gradient is 91.85.
Current parameter steps : |dx|=3.05m, max(dxi)=3.03m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=4.10m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 54 (267 calls) :
Current goal function and gradient : f=0.164, reduction df=1.12m, |g|=0.73
X :  0.596678447,  0.352388422
G : -0.732140470, -0.063404600
S :  0.732140470,  0.063404600
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.96.
Current parameter steps : |dx|=3.01m, max(dxi)=3.00m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=4.10m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 55 (271 calls) :
Current goal function and gradient : f=0.163, reduction df=1.10m, |g|=0.73
X :  0.596414234,  0.355372307
G :  0.064227233, -0.725349462
S : -0.064227233,  0.725349462
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.17.
Current parameter steps : |dx|=3.00m, max(dxi)=2.98m for number i=2, min(dxi)=0.26m for number i=1
Current steps in linear search : i=0, step size is t=4.11m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
286.731632, -238.569694
-238.569694, 200.000000

RMS value of diagonal matrix entries : 247.20
RMS value of non-diagonal entries : 238.57
Ratio of RMS values : 1.036:1

Current real inverse Hessian Matrix : 
 0.464223,  0.553747
 0.553747,  0.665537

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 84.09%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.25:1.
Current eigenvalues of real iH :  1.127701160,  0.002058270
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 56 (275 calls) :
Current goal function and gradient : f=0.162, reduction df=1.09m, |g|=0.73
X :  0.599381465,  0.355640949
G : -0.723757009, -0.065526387
S :  0.723757009,  0.065526387
Angle between -G and S is 0.00.
Angle between old and new gradient is 89.82.
Current parameter steps : |dx|=2.98m, max(dxi)=2.97m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=4.10m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 57 (279 calls) :
Current goal function and gradient : f=0.161, reduction df=1.07m, |g|=0.72
X :  0.599099952,  0.358588504
G :  0.068902402, -0.721438156
S : -0.068902402,  0.721438156
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.44.
Current parameter steps : |dx|=2.96m, max(dxi)=2.95m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=4.09m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 58 (283 calls) :
Current goal function and gradient : f=0.160, reduction df=1.06m, |g|=0.72
X :  0.602022329,  0.358850356
G : -0.719287252, -0.064449723
S :  0.719287252,  0.064449723
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.53.
Current parameter steps : |dx|=2.93m, max(dxi)=2.92m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=4.06m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 59 (287 calls) :
Current goal function and gradient : f=0.159, reduction df=1.05m, |g|=0.72
X :  0.601741379,  0.361749527
G :  0.069201810, -0.714105736
S : -0.069201810,  0.714105736
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.65.
Current parameter steps : |dx|=2.91m, max(dxi)=2.90m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=4.06m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 60 (291 calls) :
Current goal function and gradient : f=0.158, reduction df=1.04m, |g|=0.71
X :  0.604619445,  0.362019247
G : -0.711001570, -0.066632028
S :  0.711001570,  0.066632028
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.28.
Current parameter steps : |dx|=2.89m, max(dxi)=2.88m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=4.05m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
295.898932, -241.851778
-241.851778, 200.000000

RMS value of diagonal matrix entries : 252.54
RMS value of non-diagonal entries : 241.85
Ratio of RMS values : 1.044:1

Current real inverse Hessian Matrix : 
 0.290907,  0.351782
 0.351782,  0.430396

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 99.61%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.97:1.
Current eigenvalues of real iH :  0.719281363,  0.002022209
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 61 (295 calls) :
Current goal function and gradient : f=0.157, reduction df=1.02m, |g|=0.71
X :  0.604337762,  0.364878843
G :  0.069651171, -0.707085270
S : -0.069651171,  0.707085270
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.43.
Current parameter steps : |dx|=2.87m, max(dxi)=2.86m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=4.04m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 62 (299 calls) :
Current goal function and gradient : f=0.156, reduction df=1.02m, |g|=0.71
X :  0.607176780,  0.365148915
G : -0.704913195, -0.067057418
S :  0.704913195,  0.067057418
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.30.
Current parameter steps : |dx|=2.85m, max(dxi)=2.84m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=4.03m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 63 (303 calls) :
Current goal function and gradient : f=0.155, reduction df=1.00m, |g|=0.70
X :  0.606891420,  0.367967655
G :  0.070961304, -0.700945425
S : -0.070961304,  0.700945425
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.54.
Current parameter steps : |dx|=2.83m, max(dxi)=2.82m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=4.02m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 64 (307 calls) :
Current goal function and gradient : f=0.154, reduction df=0.99m, |g|=0.70
X :  0.609689669,  0.368239742
G : -0.698395815, -0.067908149
S :  0.698395815,  0.067908149
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.36.
Current parameter steps : |dx|=2.81m, max(dxi)=2.80m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=4.01m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 65 (311 calls) :
Current goal function and gradient : f=0.153, reduction df=0.98m, |g|=0.70
X :  0.609403496,  0.371018737
G :  0.071502115, -0.694350147
S : -0.071502115,  0.694350147
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.51.
Current parameter steps : |dx|=2.79m, max(dxi)=2.78m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=4.00m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
299.268902, -243.765398
-243.765398, 200.000000

RMS value of diagonal matrix entries : 254.52
RMS value of non-diagonal entries : 243.77
Ratio of RMS values : 1.044:1

Current real inverse Hessian Matrix : 
 0.462737,  0.563996
 0.563996,  0.692414

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 83.07%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.23:1.
Current eigenvalues of real iH :  1.153144444,  0.002006414
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 66 (315 calls) :
Current goal function and gradient : f=0.152, reduction df=0.97m, |g|=0.70
X :  0.612163195,  0.371293044
G : -0.691937312, -0.068776753
S :  0.691937312,  0.068776753
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.32.
Current parameter steps : |dx|=2.77m, max(dxi)=2.76m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.99m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 67 (319 calls) :
Current goal function and gradient : f=0.151, reduction df=0.95m, |g|=0.69
X :  0.611875131,  0.374033952
G :  0.072322987, -0.688146641
S : -0.072322987,  0.688146641
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.51.
Current parameter steps : |dx|=2.76m, max(dxi)=2.74m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.98m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 68 (323 calls) :
Current goal function and gradient : f=0.150, reduction df=0.95m, |g|=0.69
X :  0.614597165,  0.374309586
G : -0.685802536, -0.069444763
S :  0.685802536,  0.069444763
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.34.
Current parameter steps : |dx|=2.74m, max(dxi)=2.72m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.97m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 69 (327 calls) :
Current goal function and gradient : f=0.149, reduction df=0.93m, |g|=0.69
X :  0.614307644,  0.377012993
G :  0.073040748, -0.682017800
S : -0.073040748,  0.682017800
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=2.72m, max(dxi)=2.70m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.96m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 70 (331 calls) :
Current goal function and gradient : f=0.148, reduction df=0.93m, |g|=0.68
X :  0.616992854,  0.377290249
G : -0.679665732, -0.070177555
S :  0.679665732,  0.070177555
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.34.
Current parameter steps : |dx|=2.70m, max(dxi)=2.69m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.95m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
307.929734, -246.801141
-246.801141, 200.000000

RMS value of diagonal matrix entries : 259.64
RMS value of non-diagonal entries : 246.80
Ratio of RMS values : 1.052:1

Current real inverse Hessian Matrix : 
 0.296233,  0.365554
 0.365554,  0.456095

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 98.11%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.89:1.
Current eigenvalues of real iH :  0.750354679,  0.001973956
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 71 (335 calls) :
Current goal function and gradient : f=0.147, reduction df=0.91m, |g|=0.68
X :  0.616702112,  0.379957323
G :  0.073690376, -0.675986433
S : -0.073690376,  0.675986433
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.51.
Current parameter steps : |dx|=2.68m, max(dxi)=2.67m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.95m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 72 (339 calls) :
Current goal function and gradient : f=0.146, reduction df=0.91m, |g|=0.68
X :  0.619351611,  0.380235898
G : -0.673697414, -0.070834383
S :  0.673697414,  0.070834383
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.34.
Current parameter steps : |dx|=2.66m, max(dxi)=2.65m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.93m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 73 (343 calls) :
Current goal function and gradient : f=0.145, reduction df=0.89m, |g|=0.67
X :  0.619059649,  0.382867551
G :  0.074342860, -0.670103948
S : -0.074342860,  0.670103948
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=2.65m, max(dxi)=2.63m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.93m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 74 (347 calls) :
Current goal function and gradient : f=0.144, reduction df=0.89m, |g|=0.67
X :  0.621674282,  0.383147319
G : -0.667841320, -0.071459750
S :  0.667841320,  0.071459750
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.35.
Current parameter steps : |dx|=2.63m, max(dxi)=2.61m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.92m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 75 (351 calls) :
Current goal function and gradient : f=0.143, reduction df=0.87m, |g|=0.67
X :  0.621381307,  0.385744438
G :  0.074940253, -0.664318726
S : -0.074940253,  0.664318726
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=2.61m, max(dxi)=2.60m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.91m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
311.069726, -248.556523
-248.556523, 200.000000

RMS value of diagonal matrix entries : 261.50
RMS value of non-diagonal entries : 248.56
Ratio of RMS values : 1.052:1

Current real inverse Hessian Matrix : 
 0.461254,  0.573239
 0.573239,  0.717411

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 82.12%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.20:1.
Current eigenvalues of real iH :  1.176705924,  0.001959939
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 76 (355 calls) :
Current goal function and gradient : f=0.142, reduction df=0.87m, |g|=0.67
X :  0.623961978,  0.386025304
G : -0.662090240, -0.072058108
S :  0.662090240,  0.072058108
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.35.
Current parameter steps : |dx|=2.60m, max(dxi)=2.58m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.90m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 77 (359 calls) :
Current goal function and gradient : f=0.142, reduction df=0.86m, |g|=0.66
X :  0.623668084,  0.388588785
G :  0.075511998, -0.658649309
S : -0.075511998,  0.658649309
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=2.58m, max(dxi)=2.56m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.89m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 78 (363 calls) :
Current goal function and gradient : f=0.141, reduction df=0.85m, |g|=0.66
X :  0.626215649,  0.388870603
G : -0.656455875, -0.072618754
S :  0.656455875,  0.072618754
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.36.
Current parameter steps : |dx|=2.56m, max(dxi)=2.55m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.88m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 79 (367 calls) :
Current goal function and gradient : f=0.140, reduction df=0.84m, |g|=0.66
X :  0.625920947,  0.391401273
G :  0.076053412, -0.653087226
S : -0.076053412,  0.653087226
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=2.55m, max(dxi)=2.53m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.87m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 80 (371 calls) :
Current goal function and gradient : f=0.139, reduction df=0.83m, |g|=0.66
X :  0.628436218,  0.391683942
G : -0.650924169, -0.073151757
S :  0.650924169,  0.073151757
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.36.
Current parameter steps : |dx|=2.53m, max(dxi)=2.52m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.86m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
319.275084, -251.378487
-251.378487, 200.000000

RMS value of diagonal matrix entries : 266.40
RMS value of non-diagonal entries : 251.38
Ratio of RMS values : 1.060:1

Current real inverse Hessian Matrix : 
 0.301262,  0.378654
 0.378654,  0.480928

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 96.69%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.81:1.
Current eigenvalues of real iH :  0.780259817,  0.001930526
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 81 (375 calls) :
Current goal function and gradient : f=0.138, reduction df=0.82m, |g|=0.65
X :  0.628140820,  0.394182613
G :  0.076563853, -0.647627476
S : -0.076563853,  0.647627476
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=2.52m, max(dxi)=2.50m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.86m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 82 (379 calls) :
Current goal function and gradient : f=0.137, reduction df=0.82m, |g|=0.65
X :  0.630624590,  0.394466027
G : -0.645496028, -0.073655194
S :  0.645496028,  0.073655194
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.37.
Current parameter steps : |dx|=2.50m, max(dxi)=2.48m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.85m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 83 (383 calls) :
Current goal function and gradient : f=0.137, reduction df=0.80m, |g|=0.65
X :  0.630328590,  0.396933478
G :  0.077047796, -0.642269303
S : -0.077047796,  0.642269303
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=2.49m, max(dxi)=2.47m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.84m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 84 (387 calls) :
Current goal function and gradient : f=0.136, reduction df=0.80m, |g|=0.64
X :  0.632781619,  0.397217536
G : -0.640167738, -0.074130883
S :  0.640167738,  0.074130883
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.37.
Current parameter steps : |dx|=2.47m, max(dxi)=2.45m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.83m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 85 (391 calls) :
Current goal function and gradient : f=0.135, reduction df=0.79m, |g|=0.64
X :  0.632485112,  0.399654514
G :  0.077504746, -0.637008231
S : -0.077504746,  0.637008231
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=2.45m, max(dxi)=2.44m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.83m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
322.213455, -252.998045
-252.998045, 200.000000

RMS value of diagonal matrix entries : 268.16
RMS value of non-diagonal entries : 253.00
Ratio of RMS values : 1.060:1

Current real inverse Hessian Matrix : 
 0.460108,  0.582033
 0.582033,  0.741266

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 81.21%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.18:1.
Current eigenvalues of real iH :  1.199455898,  0.001917988
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 86 (395 calls) :
Current goal function and gradient : f=0.134, reduction df=0.79m, |g|=0.64
X :  0.634908131,  0.399939126
G : -0.634935672, -0.074580594
S :  0.634935672,  0.074580594
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.37.
Current parameter steps : |dx|=2.44m, max(dxi)=2.42m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.82m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 87 (399 calls) :
Current goal function and gradient : f=0.134, reduction df=0.77m, |g|=0.64
X :  0.634611204,  0.402346355
G :  0.077936525, -0.631841794
S : -0.077936525,  0.631841794
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=2.43m, max(dxi)=2.41m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.81m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 88 (403 calls) :
Current goal function and gradient : f=0.133, reduction df=0.77m, |g|=0.63
X :  0.637004920,  0.402631432
G : -0.629797526, -0.075005080
S :  0.629797526,  0.075005080
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.38.
Current parameter steps : |dx|=2.41m, max(dxi)=2.39m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.80m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 89 (407 calls) :
Current goal function and gradient : f=0.132, reduction df=0.76m, |g|=0.63
X :  0.636707654,  0.405009608
G :  0.078344294, -0.626767181
S : -0.078344294,  0.626767181
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=2.40m, max(dxi)=2.38m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.79m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 90 (411 calls) :
Current goal function and gradient : f=0.131, reduction df=0.76m, |g|=0.63
X :  0.639072747,  0.405295068
G : -0.624750233, -0.075405726
S :  0.624750233,  0.075405726
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.38.
Current parameter steps : |dx|=2.38m, max(dxi)=2.37m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.79m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
330.009420, -255.633099
-255.633099, 200.000000

RMS value of diagonal matrix entries : 272.86
RMS value of non-diagonal entries : 255.63
Ratio of RMS values : 1.067:1

Current real inverse Hessian Matrix : 
 0.305996,  0.391114
 0.391114,  0.504908

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 95.33%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.75:1.
Current eigenvalues of real iH :  0.809013272,  0.001891169
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 91 (415 calls) :
Current goal function and gradient : f=0.130, reduction df=0.74m, |g|=0.63
X :  0.638775220,  0.407644864
G :  0.078729010, -0.621781588
S : -0.078729010,  0.621781588
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=2.37m, max(dxi)=2.35m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.78m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 92 (419 calls) :
Current goal function and gradient : f=0.130, reduction df=0.74m, |g|=0.62
X :  0.641112348,  0.407930631
G : -0.619791210, -0.075783561
S :  0.619791210,  0.075783561
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.39.
Current parameter steps : |dx|=2.35m, max(dxi)=2.34m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.77m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 93 (423 calls) :
Current goal function and gradient : f=0.129, reduction df=0.73m, |g|=0.62
X :  0.640814632,  0.410252694
G :  0.079091823, -0.616882515
S : -0.079091823,  0.616882515
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.53.
Current parameter steps : |dx|=2.34m, max(dxi)=2.32m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.76m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 94 (427 calls) :
Current goal function and gradient : f=0.128, reduction df=0.73m, |g|=0.62
X :  0.643124430,  0.410538695
G : -0.614917919, -0.076139606
S :  0.614917919,  0.076139606
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.39.
Current parameter steps : |dx|=2.33m, max(dxi)=2.31m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.76m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 95 (431 calls) :
Current goal function and gradient : f=0.128, reduction df=0.71m, |g|=0.62
X :  0.642826592,  0.412833653
G :  0.079433671, -0.612067448
S : -0.079433671,  0.612067448
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.53.
Current parameter steps : |dx|=2.31m, max(dxi)=2.29m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.75m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
332.768628, -257.134637
-257.134637, 200.000000

RMS value of diagonal matrix entries : 274.53
RMS value of non-diagonal entries : 257.13
Ratio of RMS values : 1.068:1

Current real inverse Hessian Matrix : 
 0.459238,  0.590430
 0.590430,  0.764100

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 80.33%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.16:1.
Current eigenvalues of real iH :  1.221457854,  0.001879876
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 96 (435 calls) :
Current goal function and gradient : f=0.127, reduction df=0.71m, |g|=0.61
X :  0.645109673,  0.413119820
G : -0.610127882, -0.076474860
S :  0.610127882,  0.076474860
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.39.
Current parameter steps : |dx|=2.30m, max(dxi)=2.28m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.74m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 97 (439 calls) :
Current goal function and gradient : f=0.126, reduction df=0.70m, |g|=0.61
X :  0.644811777,  0.415388277
G :  0.079755498, -0.607334013
S : -0.079755498,  0.607334013
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.53.
Current parameter steps : |dx|=2.29m, max(dxi)=2.27m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.74m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 98 (443 calls) :
Current goal function and gradient : f=0.125, reduction df=0.70m, |g|=0.61
X :  0.647068733,  0.415674545
G : -0.605418766, -0.076790235
S :  0.605418766,  0.076790235
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.40.
Current parameter steps : |dx|=2.28m, max(dxi)=2.26m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.73m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 99 (447 calls) :
Current goal function and gradient : f=0.125, reduction df=0.69m, |g|=0.61
X :  0.646770840,  0.417917087
G :  0.080058193, -0.602679926
S : -0.080058193,  0.602679926
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.53.
Current parameter steps : |dx|=2.26m, max(dxi)=2.24m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.72m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 100 (451 calls) :
Current goal function and gradient : f=0.124, reduction df=0.69m, |g|=0.61
X :  0.649002243,  0.418203396
G : -0.600788304, -0.077086613
S :  0.600788304,  0.077086613
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.40.
Current parameter steps : |dx|=2.25m, max(dxi)=2.23m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.71m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
340.194487, -259.604897
-259.604897, 200.000000

RMS value of diagonal matrix entries : 279.05
RMS value of non-diagonal entries : 259.60
Ratio of RMS values : 1.075:1

Current real inverse Hessian Matrix : 
 0.310465,  0.402991
 0.402991,  0.528092

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 94.04%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.69:1.
Current eigenvalues of real iH :  0.836702225,  0.001855290
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 101 (455 calls) :
Current goal function and gradient : f=0.123, reduction df=0.68m, |g|=0.60
X :  0.648704410,  0.420420587
G :  0.080342590, -0.598102986
S : -0.080342590,  0.598102986
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.53.
Current parameter steps : |dx|=2.24m, max(dxi)=2.22m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.71m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 102 (459 calls) :
Current goal function and gradient : f=0.123, reduction df=0.67m, |g|=0.60
X :  0.650910812,  0.420706880
G : -0.596234326, -0.077364826
S :  0.596234326,  0.077364826
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.40.
Current parameter steps : |dx|=2.22m, max(dxi)=2.21m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.70m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 103 (463 calls) :
Current goal function and gradient : f=0.122, reduction df=0.66m, |g|=0.60
X :  0.650613092,  0.422899267
G :  0.080609488, -0.593601082
S : -0.080609488,  0.593601082
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.53.
Current parameter steps : |dx|=2.21m, max(dxi)=2.19m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.69m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 104 (467 calls) :
Current goal function and gradient : f=0.121, reduction df=0.66m, |g|=0.60
X :  0.652795031,  0.423185491
G : -0.591754744, -0.077625662
S :  0.591754744,  0.077625662
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.41.
Current parameter steps : |dx|=2.20m, max(dxi)=2.18m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.69m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 105 (471 calls) :
Current goal function and gradient : f=0.121, reduction df=0.65m, |g|=0.59
X :  0.652497473,  0.425353603
G :  0.080859643, -0.589172180
S : -0.080859643,  0.589172180
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.54.
Current parameter steps : |dx|=2.19m, max(dxi)=2.17m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.68m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
342.793422, -261.002989
-261.002989, 200.000000

RMS value of diagonal matrix entries : 280.63
RMS value of non-diagonal entries : 261.00
Ratio of RMS values : 1.075:1

Current real inverse Hessian Matrix : 
 0.458585,  0.598460
 0.598460,  0.786000

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 79.48%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.14:1.
Current eigenvalues of real iH :  1.242739918,  0.001845057
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 106 (475 calls) :
Current goal function and gradient : f=0.120, reduction df=0.65m, |g|=0.59
X :  0.654655466,  0.425639707
G : -0.587347548, -0.077869874
S :  0.587347548,  0.077869874
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.41.
Current parameter steps : |dx|=2.18m, max(dxi)=2.16m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.67m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 107 (479 calls) :
Current goal function and gradient : f=0.119, reduction df=0.64m, |g|=0.59
X :  0.654358118,  0.427784055
G :  0.081093773, -0.584814325
S : -0.081093773,  0.584814325
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.54.
Current parameter steps : |dx|=2.16m, max(dxi)=2.14m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.67m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 108 (483 calls) :
Current goal function and gradient : f=0.119, reduction df=0.64m, |g|=0.59
X :  0.656492666,  0.428069992
G : -0.583010804, -0.078098171
S :  0.583010804,  0.078098171
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.42.
Current parameter steps : |dx|=2.15m, max(dxi)=2.13m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.66m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 109 (487 calls) :
Current goal function and gradient : f=0.118, reduction df=0.63m, |g|=0.59
X :  0.656195572,  0.430191073
G :  0.081312561, -0.580525633
S : -0.081312561,  0.580525633
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.54.
Current parameter steps : |dx|=2.14m, max(dxi)=2.12m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.65m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 110 (491 calls) :
Current goal function and gradient : f=0.118, reduction df=0.63m, |g|=0.58
X :  0.658307162,  0.430476798
G : -0.578742652, -0.078311233
S :  0.578742652,  0.078311233
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.42.
Current parameter steps : |dx|=2.13m, max(dxi)=2.11m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.65m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
349.882863, -263.326865
-263.326865, 200.000000

RMS value of diagonal matrix entries : 284.97
RMS value of non-diagonal entries : 263.33
Ratio of RMS values : 1.082:1

Current real inverse Hessian Matrix : 
 0.314695,  0.414339
 0.414339,  0.550533

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 92.81%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.64:1.
Current eigenvalues of real iH :  0.863405886,  0.001822408
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 111 (495 calls) :
Current goal function and gradient : f=0.117, reduction df=0.62m, |g|=0.58
X :  0.658010364,  0.432575091
G :  0.081516655, -0.576304291
S : -0.081516655,  0.576304291
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.54.
Current parameter steps : |dx|=2.12m, max(dxi)=2.10m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.64m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 112 (499 calls) :
Current goal function and gradient : f=0.116, reduction df=0.62m, |g|=0.58
X :  0.660099465,  0.432860561
G : -0.574541298, -0.078509703
S :  0.574541298,  0.078509703
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.42.
Current parameter steps : |dx|=2.11m, max(dxi)=2.09m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.64m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 113 (503 calls) :
Current goal function and gradient : f=0.116, reduction df=0.61m, |g|=0.58
X :  0.659803003,  0.434936532
G :  0.081706674, -0.572148552
S : -0.081706674,  0.572148552
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.54.
Current parameter steps : |dx|=2.10m, max(dxi)=2.08m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.63m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 114 (507 calls) :
Current goal function and gradient : f=0.115, reduction df=0.61m, |g|=0.58
X :  0.661870072,  0.435221708
G : -0.570405013, -0.078694193
S :  0.570405013,  0.078694193
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.43.
Current parameter steps : |dx|=2.09m, max(dxi)=2.07m for number i=1, min(dxi)=0.29m for number i=2
Current steps in linear search : i=0, step size is t=3.62m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 115 (511 calls) :
Current goal function and gradient : f=0.115, reduction df=0.60m, |g|=0.57
X :  0.661573982,  0.437275807
G :  0.081883204, -0.568056730
S : -0.081883204,  0.568056730
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.55.
Current parameter steps : |dx|=2.08m, max(dxi)=2.05m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.62m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
352.337593, -264.633593
-264.633593, 200.000000

RMS value of diagonal matrix entries : 286.48
RMS value of non-diagonal entries : 264.63
Ratio of RMS values : 1.083:1

Current real inverse Hessian Matrix : 
 0.458106,  0.606151
 0.606151,  0.807040

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 78.67%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.12:1.
Current eigenvalues of real iH :  1.263332557,  0.001813085
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 116 (515 calls) :
Current goal function and gradient : f=0.114, reduction df=0.60m, |g|=0.57
X :  0.663619460,  0.437560652
G : -0.566332133, -0.078865287
S :  0.566332133,  0.078865287
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.43.
Current parameter steps : |dx|=2.07m, max(dxi)=2.05m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.61m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 117 (519 calls) :
Current goal function and gradient : f=0.113, reduction df=0.59m, |g|=0.57
X :  0.663323777,  0.439593315
G :  0.082046807, -0.564027202
S : -0.082046807,  0.564027202
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.55.
Current parameter steps : |dx|=2.05m, max(dxi)=2.03m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.60m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 118 (523 calls) :
Current goal function and gradient : f=0.113, reduction df=0.59m, |g|=0.57
X :  0.665348094,  0.439877795
G : -0.562321051, -0.079023540
S :  0.562321051,  0.079023540
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.44.
Current parameter steps : |dx|=2.04m, max(dxi)=2.02m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.60m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 119 (527 calls) :
Current goal function and gradient : f=0.112, reduction df=0.58m, |g|=0.57
X :  0.665052851,  0.441889447
G :  0.082198013, -0.560058401
S : -0.082198013,  0.560058401
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.55.
Current parameter steps : |dx|=2.03m, max(dxi)=2.01m for number i=2, min(dxi)=0.30m for number i=1
Current steps in linear search : i=0, step size is t=3.59m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 120 (531 calls) :
Current goal function and gradient : f=0.112, reduction df=0.58m, |g|=0.56
X :  0.667056422,  0.442173527
G : -0.558370217, -0.079169481
S :  0.558370217,  0.079169481
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.44.
Current parameter steps : |dx|=2.02m, max(dxi)=2.00m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.59m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
359.119733, -266.826569
-266.826569, 200.000000

RMS value of diagonal matrix entries : 290.66
RMS value of non-diagonal entries : 266.83
Ratio of RMS values : 1.089:1

Current real inverse Hessian Matrix : 
 0.318710,  0.425202
 0.425202,  0.572276

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 91.63%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.59:1.
Current eigenvalues of real iH :  0.889194478,  0.001792130
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 121 (535 calls) :
Current goal function and gradient : f=0.111, reduction df=0.57m, |g|=0.56
X :  0.666761649,  0.444164578
G :  0.082337333, -0.556148816
S : -0.082337333,  0.556148816
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.55.
Current parameter steps : |dx|=2.01m, max(dxi)=1.99m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.58m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 122 (539 calls) :
Current goal function and gradient : f=0.110, reduction df=0.57m, |g|=0.56
X :  0.668744879,  0.444448228
G : -0.554478136, -0.079303615
S :  0.554478136,  0.079303615
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.44.
Current parameter steps : |dx|=2.00m, max(dxi)=1.98m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.58m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 123 (543 calls) :
Current goal function and gradient : f=0.110, reduction df=0.56m, |g|=0.56
X :  0.668450604,  0.446419078
G :  0.082465249, -0.552296986
S : -0.082465249,  0.552296986
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.55.
Current parameter steps : |dx|=1.99m, max(dxi)=1.97m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.57m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 124 (547 calls) :
Current goal function and gradient : f=0.109, reduction df=0.56m, |g|=0.56
X :  0.670413883,  0.446702268
G : -0.550643364, -0.079426422
S :  0.550643364,  0.079426422
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.45.
Current parameter steps : |dx|=1.98m, max(dxi)=1.96m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.57m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 125 (551 calls) :
Current goal function and gradient : f=0.109, reduction df=0.55m, |g|=0.55
X :  0.670120136,  0.448653305
G :  0.082582224, -0.548501504
S : -0.082582224,  0.548501504
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.56.
Current parameter steps : |dx|=1.97m, max(dxi)=1.95m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.56m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
361.444040, -268.052054
-268.052054, 200.000000

RMS value of diagonal matrix entries : 292.10
RMS value of non-diagonal entries : 268.05
Ratio of RMS values : 1.090:1

Current real inverse Hessian Matrix : 
 0.457766,  0.613526
 0.613526,  0.827284

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 77.89%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.10:1.
Current eigenvalues of real iH :  1.283267039,  0.001783597
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 126 (555 calls) :
Current goal function and gradient : f=0.108, reduction df=0.55m, |g|=0.55
X :  0.672063845,  0.448936006
G : -0.546864507, -0.079538361
S :  0.546864507,  0.079538361
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.45.
Current parameter steps : |dx|=1.96m, max(dxi)=1.94m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.55m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 127 (559 calls) :
Current goal function and gradient : f=0.108, reduction df=0.54m, |g|=0.55
X :  0.671770649,  0.450867606
G :  0.082688699, -0.544761007
S : -0.082688699,  0.544761007
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.56.
Current parameter steps : |dx|=1.95m, max(dxi)=1.93m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.55m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 128 (563 calls) :
Current goal function and gradient : f=0.107, reduction df=0.54m, |g|=0.55
X :  0.673695157,  0.451149793
G : -0.543140219, -0.079639870
S :  0.543140219,  0.079639870
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.45.
Current parameter steps : |dx|=1.95m, max(dxi)=1.92m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.54m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 129 (567 calls) :
Current goal function and gradient : f=0.107, reduction df=0.53m, |g|=0.55
X :  0.673402538,  0.453062321
G :  0.082785094, -0.541074180
S : -0.082785094,  0.541074180
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.56.
Current parameter steps : |dx|=1.93m, max(dxi)=1.91m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.53m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 130 (571 calls) :
Current goal function and gradient : f=0.106, reduction df=0.53m, |g|=0.55
X :  0.675308203,  0.453343970
G : -0.539469196, -0.079731366
S :  0.539469196,  0.079731366
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.46.
Current parameter steps : |dx|=1.93m, max(dxi)=1.91m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.53m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
367.944230, -270.127281
-270.127281, 200.000000

RMS value of diagonal matrix entries : 296.13
RMS value of non-diagonal entries : 270.13
Ratio of RMS values : 1.096:1

Current real inverse Hessian Matrix : 
 0.322530,  0.435620
 0.435620,  0.593365

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 90.51%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.55:1.
Current eigenvalues of real iH :  0.914130251,  0.001764134
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 131 (575 calls) :
Current goal function and gradient : f=0.106, reduction df=0.52m, |g|=0.54
X :  0.675016183,  0.455237780
G :  0.082871811, -0.537439752
S : -0.082871811,  0.537439752
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.56.
Current parameter steps : |dx|=1.92m, max(dxi)=1.89m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.52m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 132 (579 calls) :
Current goal function and gradient : f=0.105, reduction df=0.52m, |g|=0.54
X :  0.676903355,  0.455518869
G : -0.535850181, -0.079813249
S :  0.535850181,  0.079813249
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.46.
Current parameter steps : |dx|=1.91m, max(dxi)=1.89m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.52m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 133 (583 calls) :
Current goal function and gradient : f=0.105, reduction df=0.51m, |g|=0.54
X :  0.676611954,  0.457394307
G :  0.082949235, -0.533856493
S : -0.082949235,  0.533856493
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.57.
Current parameter steps : |dx|=1.90m, max(dxi)=1.88m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.51m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 134 (587 calls) :
Current goal function and gradient : f=0.104, reduction df=0.51m, |g|=0.54
X :  0.678480971,  0.457674812
G : -0.532281958, -0.079885901
S :  0.532281958,  0.079885901
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.47.
Current parameter steps : |dx|=1.89m, max(dxi)=1.87m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.51m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 135 (591 calls) :
Current goal function and gradient : f=0.104, reduction df=0.50m, |g|=0.54
X :  0.678190211,  0.459532213
G :  0.083017731, -0.530323214
S : -0.083017731,  0.530323214
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.57.
Current parameter steps : |dx|=1.88m, max(dxi)=1.86m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.50m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
370.150022, -271.280084
-271.280084, 200.000000

RMS value of diagonal matrix entries : 297.50
RMS value of non-diagonal entries : 271.28
Ratio of RMS values : 1.097:1

Current real inverse Hessian Matrix : 
 0.457540,  0.620607
 0.620607,  0.846792

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 77.13%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.09:1.
Current eigenvalues of real iH :  1.302575533,  0.001756289
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 136 (595 calls) :
Current goal function and gradient : f=0.103, reduction df=0.51m, |g|=0.53
X :  0.680041403,  0.459812116
G : -0.528763348, -0.079949684
S :  0.528763348,  0.079949684
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.47.
Current parameter steps : |dx|=1.87m, max(dxi)=1.85m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.50m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 137 (599 calls) :
Current goal function and gradient : f=0.103, reduction df=0.50m, |g|=0.53
X :  0.679751301,  0.461651806
G :  0.083077652, -0.526838764
S : -0.083077652,  0.526838764
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.57.
Current parameter steps : |dx|=1.86m, max(dxi)=1.84m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.49m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 138 (603 calls) :
Current goal function and gradient : f=0.102, reduction df=0.50m, |g|=0.53
X :  0.681584988,  0.461931086
G : -0.525293214, -0.080004949
S :  0.525293214,  0.080004949
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.47.
Current parameter steps : |dx|=1.85m, max(dxi)=1.83m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.49m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 139 (607 calls) :
Current goal function and gradient : f=0.102, reduction df=0.49m, |g|=0.53
X :  0.681295562,  0.463753383
G :  0.083129331, -0.523402029
S : -0.083129331,  0.523402029
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.57.
Current parameter steps : |dx|=1.85m, max(dxi)=1.82m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.48m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 140 (611 calls) :
Current goal function and gradient : f=0.101, reduction df=0.49m, |g|=0.53
X :  0.683112057,  0.464032023
G : -0.521870451, -0.080052028
S :  0.521870451,  0.080052028
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.48.
Current parameter steps : |dx|=1.84m, max(dxi)=1.82m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.48m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
376.390480, -273.248823
-273.248823, 200.000000

RMS value of diagonal matrix entries : 301.39
RMS value of non-diagonal entries : 273.25
Ratio of RMS values : 1.103:1

Current real inverse Hessian Matrix : 
 0.326170,  0.445628
 0.445628,  0.613837

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 89.43%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.51:1.
Current eigenvalues of real iH :  0.938268885,  0.001738149
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 141 (615 calls) :
Current goal function and gradient : f=0.101, reduction df=0.48m, |g|=0.53
X :  0.682823324,  0.465837235
G :  0.083173091, -0.520011932
S : -0.083173091,  0.520011932
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.58.
Current parameter steps : |dx|=1.83m, max(dxi)=1.81m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.47m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 142 (619 calls) :
Current goal function and gradient : f=0.100, reduction df=0.48m, |g|=0.52
X :  0.684622929,  0.466115218
G : -0.518493993, -0.080091240
S :  0.518493993,  0.080091240
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.48.
Current parameter steps : |dx|=1.82m, max(dxi)=1.80m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.47m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 143 (623 calls) :
Current goal function and gradient : f=99.661m, reduction df=0.47m, |g|=0.52
X :  0.684334903,  0.467903645
G :  0.083209238, -0.516667428
S : -0.083209238,  0.516667428
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.58.
Current parameter steps : |dx|=1.81m, max(dxi)=1.79m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.46m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 144 (627 calls) :
Current goal function and gradient : f=99.186m, reduction df=0.48m, |g|=0.52
X :  0.686117915,  0.468180956
G : -0.515162806, -0.080122891
S :  0.515162806,  0.080122891
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.48.
Current parameter steps : |dx|=1.80m, max(dxi)=1.78m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.46m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 145 (631 calls) :
Current goal function and gradient : f=98.719m, reduction df=0.47m, |g|=0.52
X :  0.685830611,  0.469952891
G :  0.083238067, -0.513367506
S : -0.083238067,  0.513367506
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.58.
Current parameter steps : |dx|=1.80m, max(dxi)=1.77m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.45m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
378.488117, -274.336245
-274.336245, 200.000000

RMS value of diagonal matrix entries : 302.70
RMS value of non-diagonal entries : 274.34
Ratio of RMS values : 1.103:1

Current real inverse Hessian Matrix : 
 0.457406,  0.627415
 0.627415,  0.865614

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 76.41%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.07:1.
Current eigenvalues of real iH :  1.321288735,  0.001730909
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 146 (635 calls) :
Current goal function and gradient : f=98.251m, reduction df=0.47m, |g|=0.52
X :  0.687597317,  0.470229514
G : -0.511875888, -0.080147272
S :  0.511875888,  0.080147272
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.49.
Current parameter steps : |dx|=1.79m, max(dxi)=1.77m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.45m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 147 (639 calls) :
Current goal function and gradient : f=97.791m, reduction df=0.46m, |g|=0.52
X :  0.687310748,  0.471985242
G :  0.083259858, -0.510111184
S : -0.083259858,  0.510111184
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.58.
Current parameter steps : |dx|=1.78m, max(dxi)=1.76m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.44m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 148 (643 calls) :
Current goal function and gradient : f=97.330m, reduction df=0.46m, |g|=0.51
X :  0.689061427,  0.472261163
G : -0.508632268, -0.080164664
S :  0.508632268,  0.080164664
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.49.
Current parameter steps : |dx|=1.77m, max(dxi)=1.75m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.44m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 149 (647 calls) :
Current goal function and gradient : f=96.878m, reduction df=0.45m, |g|=0.51
X :  0.688775607,  0.474000961
G :  0.083274882, -0.506897514
S : -0.083274882,  0.506897514
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.59.
Current parameter steps : |dx|=1.76m, max(dxi)=1.74m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.43m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 150 (651 calls) :
Current goal function and gradient : f=96.423m, reduction df=0.45m, |g|=0.51
X :  0.690510533,  0.474276168
G : -0.505431006, -0.080175334
S :  0.505431006,  0.080175334
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.50.
Current parameter steps : |dx|=1.76m, max(dxi)=1.73m for number i=1, min(dxi)=0.28m for number i=2
Current steps in linear search : i=0, step size is t=3.43m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
384.488433, -276.208213
-276.208213, 200.000000

RMS value of diagonal matrix entries : 306.46
RMS value of non-diagonal entries : 276.21
Ratio of RMS values : 1.110:1

Current real inverse Hessian Matrix : 
 0.329647,  0.455256
 0.455256,  0.633727

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 88.40%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.47:1.
Current eigenvalues of real iH :  0.961660323,  0.001713947
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 151 (655 calls) :
Current goal function and gradient : f=95.977m, reduction df=0.45m, |g|=0.51
X :  0.690225473,  0.476000305
G :  0.083283398, -0.503725573
S : -0.083283398,  0.503725573
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.59.
Current parameter steps : |dx|=1.75m, max(dxi)=1.72m for number i=2, min(dxi)=0.29m for number i=1
Current steps in linear search : i=0, step size is t=3.42m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 152 (659 calls) :
Current goal function and gradient : f=95.529m, reduction df=0.45m, |g|=0.51
X :  0.691944910,  0.476274786
G : -0.502271188, -0.080179540
S :  0.502271188,  0.080179540
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.50.
Current parameter steps : |dx|=1.74m, max(dxi)=1.72m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.42m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 153 (663 calls) :
Current goal function and gradient : f=95.090m, reduction df=0.44m, |g|=0.51
X :  0.691660621,  0.477983527
G :  0.083285652, -0.500594468
S : -0.083285652,  0.500594468
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.59.
Current parameter steps : |dx|=1.73m, max(dxi)=1.71m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=3.41m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 154 (667 calls) :
Current goal function and gradient : f=94.649m, reduction df=0.44m, |g|=0.51
X :  0.693364829,  0.478257269
G : -0.499151930, -0.080177527
S :  0.499151930,  0.080177527
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.50.
Current parameter steps : |dx|=1.73m, max(dxi)=1.70m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.41m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 155 (671 calls) :
Current goal function and gradient : f=94.216m, reduction df=0.43m, |g|=0.50
X :  0.693081321,  0.479950870
G :  0.083281884, -0.497503334
S : -0.083281884,  0.497503334
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.59.
Current parameter steps : |dx|=1.72m, max(dxi)=1.69m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=3.40m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
386.486981, -277.236528
-277.236528, 200.000000

RMS value of diagonal matrix entries : 307.71
RMS value of non-diagonal entries : 277.24
Ratio of RMS values : 1.110:1

Current real inverse Hessian Matrix : 
 0.457348,  0.633968
 0.633968,  0.883796

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 75.71%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.06:1.
Current eigenvalues of real iH :  1.339436425,  0.001707241
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 156 (675 calls) :
Current goal function and gradient : f=93.781m, reduction df=0.43m, |g|=0.50
X :  0.694770552,  0.480223864
G : -0.496072373, -0.080169533
S :  0.496072373,  0.080169533
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.51.
Current parameter steps : |dx|=1.71m, max(dxi)=1.69m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.41m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 157 (679 calls) :
Current goal function and gradient : f=93.355m, reduction df=0.43m, |g|=0.50
X :  0.694487835,  0.481902574
G :  0.083272320, -0.494451327
S : -0.083272320,  0.494451327
Angle between -G and S is -0.00.
Angle between old and new gradient is 90.60.
Current parameter steps : |dx|=1.70m, max(dxi)=1.68m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=3.40m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 158 (683 calls) :
Current goal function and gradient : f=92.926m, reduction df=0.43m, |g|=0.50
X :  0.696162336,  0.482174810
G : -0.493031684, -0.080155784
S :  0.493031684,  0.080155784
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.51.
Current parameter steps : |dx|=1.70m, max(dxi)=1.67m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.40m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 159 (687 calls) :
Current goal function and gradient : f=92.506m, reduction df=0.42m, |g|=0.50
X :  0.695880418,  0.483838873
G :  0.083257179, -0.491437634
S : -0.083257179,  0.491437634
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.60.
Current parameter steps : |dx|=1.69m, max(dxi)=1.66m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=3.39m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 160 (691 calls) :
Current goal function and gradient : f=92.083m, reduction df=0.42m, |g|=0.50
X :  0.697540428,  0.484110342
G : -0.490029055, -0.080136497
S :  0.490029055,  0.080136497
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=1.68m, max(dxi)=1.66m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.39m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
392.264525, -279.020171
-279.020171, 200.000000

RMS value of diagonal matrix entries : 311.35
RMS value of non-diagonal entries : 279.02
Ratio of RMS values : 1.116:1

Current real inverse Hessian Matrix : 
 0.332973,  0.464531
 0.464531,  0.653068

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 87.41%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.44:1.
Current eigenvalues of real iH :  0.984349794,  0.001691336
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 161 (695 calls) :
Current goal function and gradient : f=91.669m, reduction df=0.41m, |g|=0.50
X :  0.697259317,  0.485759996
G :  0.083236671, -0.488461460
S : -0.083236671,  0.488461460
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.60.
Current parameter steps : |dx|=1.67m, max(dxi)=1.65m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=3.38m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 162 (699 calls) :
Current goal function and gradient : f=91.252m, reduction df=0.42m, |g|=0.49
X :  0.698905071,  0.486030689
G : -0.487063700, -0.080111880
S :  0.487063700,  0.080111880
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=1.67m, max(dxi)=1.65m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.38m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 163 (703 calls) :
Current goal function and gradient : f=90.844m, reduction df=0.41m, |g|=0.49
X :  0.698624776,  0.487666167
G :  0.083210999, -0.485522036
S : -0.083210999,  0.485522036
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.60.
Current parameter steps : |dx|=1.66m, max(dxi)=1.64m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=3.37m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 164 (707 calls) :
Current goal function and gradient : f=90.433m, reduction df=0.41m, |g|=0.49
X :  0.700256502,  0.487936075
G : -0.484134856, -0.080082135
S :  0.484134856,  0.080082135
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.52.
Current parameter steps : |dx|=1.65m, max(dxi)=1.63m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.37m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 165 (711 calls) :
Current goal function and gradient : f=90.031m, reduction df=0.40m, |g|=0.49
X :  0.699977028,  0.489557602
G :  0.083180354, -0.482618615
S : -0.083180354,  0.482618615
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.61.
Current parameter steps : |dx|=1.65m, max(dxi)=1.62m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=3.36m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
394.171966, -279.994811
-279.994811, 200.000000

RMS value of diagonal matrix entries : 312.55
RMS value of non-diagonal entries : 279.99
Ratio of RMS values : 1.116:1

Current real inverse Hessian Matrix : 
 0.457353,  0.640282
 0.640282,  0.901379

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 75.04%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.04:1.
Current eigenvalues of real iH :  1.357046669,  0.001685104
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 166 (715 calls) :
Current goal function and gradient : f=89.626m, reduction df=0.40m, |g|=0.49
X :  0.701594949,  0.489826720
G : -0.481241784, -0.080047453
S :  0.481241784,  0.080047453
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.53.
Current parameter steps : |dx|=1.64m, max(dxi)=1.62m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.36m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 167 (719 calls) :
Current goal function and gradient : f=89.229m, reduction df=0.40m, |g|=0.49
X :  0.701316303,  0.491434517
G :  0.083144923, -0.479750471
S : -0.083144923,  0.479750471
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.61.
Current parameter steps : |dx|=1.63m, max(dxi)=1.61m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=3.35m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 168 (723 calls) :
Current goal function and gradient : f=88.830m, reduction df=0.40m, |g|=0.49
X :  0.702920636,  0.491702836
G : -0.478383763, -0.080008019
S :  0.478383763,  0.080008019
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.53.
Current parameter steps : |dx|=1.63m, max(dxi)=1.60m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.35m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 169 (727 calls) :
Current goal function and gradient : f=88.438m, reduction df=0.39m, |g|=0.48
X :  0.702642825,  0.493297120
G :  0.083104884, -0.476916898
S : -0.083104884,  0.476916898
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.61.
Current parameter steps : |dx|=1.62m, max(dxi)=1.59m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=3.34m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 170 (731 calls) :
Current goal function and gradient : f=88.044m, reduction df=0.39m, |g|=0.48
X :  0.704233783,  0.493564635
G : -0.475560093, -0.079964012
S :  0.475560093,  0.079964012
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.53.
Current parameter steps : |dx|=1.61m, max(dxi)=1.59m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.35m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
399.742215, -281.697513
-281.697513, 200.000000

RMS value of diagonal matrix entries : 316.06
RMS value of non-diagonal entries : 281.70
Ratio of RMS values : 1.122:1

Current real inverse Hessian Matrix : 
 0.336160,  0.473478
 0.473478,  0.671887

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 86.46%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.41:1.
Current eigenvalues of real iH :  1.006377691,  0.001670150
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 171 (735 calls) :
Current goal function and gradient : f=87.658m, reduction df=0.39m, |g|=0.48
X :  0.703956811,  0.495145614
G :  0.083060410, -0.474117210
S : -0.083060410,  0.474117210
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.62.
Current parameter steps : |dx|=1.61m, max(dxi)=1.58m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=3.33m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 172 (739 calls) :
Current goal function and gradient : f=87.270m, reduction df=0.39m, |g|=0.48
X :  0.705534601,  0.495412319
G : -0.472770095, -0.079915600
S :  0.472770095,  0.079915600
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.54.
Current parameter steps : |dx|=1.60m, max(dxi)=1.58m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.34m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 173 (743 calls) :
Current goal function and gradient : f=86.889m, reduction df=0.38m, |g|=0.48
X :  0.705258474,  0.496980201
G :  0.083011664, -0.471350740
S : -0.083011664,  0.471350740
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.62.
Current parameter steps : |dx|=1.59m, max(dxi)=1.57m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=3.33m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 174 (747 calls) :
Current goal function and gradient : f=86.506m, reduction df=0.38m, |g|=0.48
X :  0.706823298,  0.497246090
G : -0.470013108, -0.079862949
S :  0.470013108,  0.079862949
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.54.
Current parameter steps : |dx|=1.59m, max(dxi)=1.56m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.33m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 175 (751 calls) :
Current goal function and gradient : f=86.131m, reduction df=0.38m, |g|=0.48
X :  0.706548020,  0.498801074
G :  0.082958806, -0.468616839
S : -0.082958806,  0.468616839
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.62.
Current parameter steps : |dx|=1.58m, max(dxi)=1.55m for number i=2, min(dxi)=0.28m for number i=1
Current steps in linear search : i=0, step size is t=3.32m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
401.565611, -282.623208
-282.623208, 200.000000

RMS value of diagonal matrix entries : 317.22
RMS value of non-diagonal entries : 282.62
Ratio of RMS values : 1.122:1

Current real inverse Hessian Matrix : 
 0.457410,  0.646373
 0.646373,  0.918401

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 74.39%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.03:1.
Current eigenvalues of real iH :  1.374146313,  0.001664342
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 176 (755 calls) :
Current goal function and gradient : f=85.753m, reduction df=0.38m, |g|=0.47
X :  0.708100076,  0.499066143
G : -0.467288489, -0.079806217
S :  0.467288489,  0.079806217
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.55.
Current parameter steps : |dx|=1.57m, max(dxi)=1.55m for number i=1, min(dxi)=0.27m for number i=2
Current steps in linear search : i=0, step size is t=3.32m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 177 (759 calls) :
Current goal function and gradient : f=85.383m, reduction df=0.37m, |g|=0.47
X :  0.707825651,  0.500608425
G :  0.082901988, -0.465914877
S : -0.082901988,  0.465914877
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.62.
Current parameter steps : |dx|=1.57m, max(dxi)=1.54m for number i=2, min(dxi)=0.27m for number i=1
Current steps in linear search : i=0, step size is t=3.31m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 178 (763 calls) :
Current goal function and gradient : f=85.010m, reduction df=0.37m, |g|=0.47
X :  0.709365132,  0.500872669
G : -0.464595612, -0.079745554
S :  0.464595612,  0.079745554
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.55.
Current parameter steps : |dx|=1.56m, max(dxi)=1.54m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=3.31m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 179 (767 calls) :
Current goal function and gradient : f=84.644m, reduction df=0.37m, |g|=0.47
X :  0.709091565,  0.502402442
G :  0.082841356, -0.463244239
S : -0.082841356,  0.463244239
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.63.
Current parameter steps : |dx|=1.55m, max(dxi)=1.53m for number i=2, min(dxi)=0.27m for number i=1
Current steps in linear search : i=0, step size is t=3.30m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 180 (771 calls) :
Current goal function and gradient : f=84.277m, reduction df=0.37m, |g|=0.47
X :  0.710618659,  0.502665857
G : -0.461933869, -0.079681106
S :  0.461933869,  0.079681106
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.55.
Current parameter steps : |dx|=1.55m, max(dxi)=1.53m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=3.31m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
406.942422, -284.251464
-284.251464, 200.000000

RMS value of diagonal matrix entries : 320.63
RMS value of non-diagonal entries : 284.25
Ratio of RMS values : 1.128:1

Current real inverse Hessian Matrix : 
 0.339219,  0.482117
 0.482117,  0.690213

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 85.55%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.38:1.
Current eigenvalues of real iH :  1.027781538,  0.001650248
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 181 (775 calls) :
Current goal function and gradient : f=83.916m, reduction df=0.36m, |g|=0.47
X :  0.710345952,  0.504183307
G :  0.082777052, -0.460604329
S : -0.082777052,  0.460604329
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.63.
Current parameter steps : |dx|=1.54m, max(dxi)=1.52m for number i=2, min(dxi)=0.27m for number i=1
Current steps in linear search : i=0, step size is t=3.29m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 182 (779 calls) :
Current goal function and gradient : f=83.553m, reduction df=0.36m, |g|=0.47
X :  0.711860845,  0.504445890
G : -0.459302668, -0.079613015
S :  0.459302668,  0.079613015
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.56.
Current parameter steps : |dx|=1.54m, max(dxi)=1.51m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=3.30m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 183 (783 calls) :
Current goal function and gradient : f=83.198m, reduction df=0.36m, |g|=0.47
X :  0.711589002,  0.505951200
G :  0.082709212, -0.457994566
S : -0.082709212,  0.457994566
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.63.
Current parameter steps : |dx|=1.53m, max(dxi)=1.51m for number i=2, min(dxi)=0.27m for number i=1
Current steps in linear search : i=0, step size is t=3.29m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 184 (787 calls) :
Current goal function and gradient : f=82.839m, reduction df=0.36m, |g|=0.46
X :  0.713091873,  0.506212948
G : -0.456701432, -0.079541415
S :  0.456701432,  0.079541415
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.56.
Current parameter steps : |dx|=1.53m, max(dxi)=1.50m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=3.29m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 185 (791 calls) :
Current goal function and gradient : f=82.488m, reduction df=0.35m, |g|=0.46
X :  0.712820895,  0.507706296
G :  0.082637966, -0.455414382
S : -0.082637966,  0.455414382
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.64.
Current parameter steps : |dx|=1.52m, max(dxi)=1.49m for number i=2, min(dxi)=0.27m for number i=1
Current steps in linear search : i=0, step size is t=3.28m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
408.688052, -285.132358
-285.132358, 200.000000

RMS value of diagonal matrix entries : 321.73
RMS value of non-diagonal entries : 285.13
Ratio of RMS values : 1.128:1

Current real inverse Hessian Matrix : 
 0.457510,  0.652255
 0.652255,  0.934895

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 73.77%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.02:1.
Current eigenvalues of real iH :  1.390760175,  0.001644821
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 186 (795 calls) :
Current goal function and gradient : f=82.135m, reduction df=0.35m, |g|=0.46
X :  0.714311922,  0.507967206
G : -0.454129600, -0.079466437
S :  0.454129600,  0.079466437
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.56.
Current parameter steps : |dx|=1.51m, max(dxi)=1.49m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=3.28m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 187 (799 calls) :
Current goal function and gradient : f=81.789m, reduction df=0.35m, |g|=0.46
X :  0.714041812,  0.509448768
G :  0.082563440, -0.452863228
S : -0.082563440,  0.452863228
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.64.
Current parameter steps : |dx|=1.51m, max(dxi)=1.48m for number i=2, min(dxi)=0.27m for number i=1
Current steps in linear search : i=0, step size is t=3.27m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 188 (803 calls) :
Current goal function and gradient : f=81.440m, reduction df=0.35m, |g|=0.46
X :  0.715521166,  0.509708836
G : -0.451586626, -0.079388205
S :  0.451586626,  0.079388205
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.57.
Current parameter steps : |dx|=1.50m, max(dxi)=1.48m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=3.28m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 189 (807 calls) :
Current goal function and gradient : f=81.098m, reduction df=0.34m, |g|=0.46
X :  0.715251926,  0.511178783
G :  0.082485755, -0.450340566
S : -0.082485755,  0.450340566
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.64.
Current parameter steps : |dx|=1.49m, max(dxi)=1.47m for number i=2, min(dxi)=0.27m for number i=1
Current steps in linear search : i=0, step size is t=3.26m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 190 (811 calls) :
Current goal function and gradient : f=80.754m, reduction df=0.34m, |g|=0.46
X :  0.716719776,  0.511438008
G : -0.449071978, -0.079306840
S :  0.449071978,  0.079306840
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.57.
Current parameter steps : |dx|=1.49m, max(dxi)=1.47m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=3.27m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
413.883885, -286.691910
-286.691910, 200.000000

RMS value of diagonal matrix entries : 325.04
RMS value of non-diagonal entries : 286.69
Ratio of RMS values : 1.134:1

Current real inverse Hessian Matrix : 
 0.342158,  0.490470
 0.490470,  0.708068

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 84.67%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.35:1.
Current eigenvalues of real iH :  1.048594651,  0.001631507
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 191 (815 calls) :
Current goal function and gradient : f=80.416m, reduction df=0.34m, |g|=0.46
X :  0.716451408,  0.512896507
G :  0.082405029, -0.447845873
S : -0.082405029,  0.447845873
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.65.
Current parameter steps : |dx|=1.48m, max(dxi)=1.46m for number i=2, min(dxi)=0.27m for number i=1
Current steps in linear search : i=0, step size is t=3.26m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 192 (819 calls) :
Current goal function and gradient : f=80.076m, reduction df=0.34m, |g|=0.45
X :  0.717907919,  0.513154887
G : -0.446585136, -0.079222458
S :  0.446585136,  0.079222458
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.58.
Current parameter steps : |dx|=1.48m, max(dxi)=1.46m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=3.26m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 193 (823 calls) :
Current goal function and gradient : f=79.743m, reduction df=0.33m, |g|=0.45
X :  0.717640423,  0.514602102
G :  0.082321373, -0.445378642
S : -0.082321373,  0.445378642
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.65.
Current parameter steps : |dx|=1.47m, max(dxi)=1.45m for number i=2, min(dxi)=0.27m for number i=1
Current steps in linear search : i=0, step size is t=3.25m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 194 (827 calls) :
Current goal function and gradient : f=79.408m, reduction df=0.34m, |g|=0.45
X :  0.719085757,  0.514859634
G : -0.444125596, -0.079135171
S :  0.444125596,  0.079135171
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.58.
Current parameter steps : |dx|=1.47m, max(dxi)=1.45m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=3.25m, clampings=0
Hint : Single-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 195 (831 calls) :
Current goal function and gradient : f=79.079m, reduction df=0.33m, |g|=0.45
X :  0.718819136,  0.516295724
G :  0.082234896, -0.442938374
S : -0.082234896,  0.442938374
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.65.
Current parameter steps : |dx|=1.46m, max(dxi)=1.44m for number i=2, min(dxi)=0.27m for number i=1
Current steps in linear search : i=0, step size is t=3.24m, clampings=0
Hint : Single-sided gradient formula used

Current real Hessian Matrix H  : 
415.557354, -287.531654
-287.531654, 200.000000

RMS value of diagonal matrix entries : 326.10
RMS value of non-diagonal entries : 287.53
Ratio of RMS values : 1.134:1

Current real inverse Hessian Matrix : 
 0.457646,  0.657939
 0.657939,  0.950892

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 73.16%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.01:1.
Current eigenvalues of real iH :  1.406911690,  0.001626422
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000
Warning : Single-sided gradient used. This might be the reason for problems in linear search.
Iteration 196 (835 calls) :
Current goal function and gradient : f=78.748m, reduction df=0.33m, |g|=0.45
X :  0.720253449,  0.516552408
G : -0.441692866, -0.079045087
S :  0.441692866,  0.079045087
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.58.
Current parameter steps : |dx|=1.46m, max(dxi)=1.43m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=3.25m, clampings=0
Hint : Switched to double-sided gradient because : Close to end. 
Hint : Double-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000

Iteration 197 (841 calls) :
Current goal function and gradient : f=78.417m, reduction df=0.33m, |g|=0.45
X :  0.719999038,  0.517996398
G :  0.077966732, -0.442524586
S : -0.077966732,  0.442524586
Angle between -G and S is 0.00.
Angle between old and new gradient is 89.76.
Current parameter steps : |dx|=1.47m, max(dxi)=1.44m for number i=2, min(dxi)=0.25m for number i=1
Current steps in linear search : i=0, step size is t=3.26m, clampings=0
Hint : Switched to double-sided gradient because : Close to end. 
Hint : Double-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000

Iteration 198 (847 calls) :
Current goal function and gradient : f=78.088m, reduction df=0.33m, |g|=0.45
X :  0.721439149,  0.518257220
G : -0.444163363, -0.080443472
S :  0.444163363,  0.080443472
Angle between -G and S is 0.00.
Angle between old and new gradient is 89.57.
Current parameter steps : |dx|=1.46m, max(dxi)=1.44m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=3.24m, clampings=0
Hint : Switched to double-sided gradient because : Close to end. 
Hint : Double-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000

Iteration 199 (853 calls) :
Current goal function and gradient : f=77.761m, reduction df=0.33m, |g|=0.45
X :  0.721172227,  0.519688205
G :  0.082715758, -0.443445124
S : -0.082715758,  0.443445124
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.47.
Current parameter steps : |dx|=1.46m, max(dxi)=1.43m for number i=2, min(dxi)=0.27m for number i=1
Current steps in linear search : i=0, step size is t=3.23m, clampings=0
Hint : Switched to double-sided gradient because : Close to end. 
Hint : Double-sided gradient formula used
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000

Iteration 200 (859 calls) :
Current goal function and gradient : f=77.436m, reduction df=0.32m, |g|=0.45
X :  0.722595178,  0.519946552
G : -0.441928634, -0.080235201
S :  0.441928634,  0.080235201
Angle between -G and S is 0.00.
Angle between old and new gradient is 90.43.
Current parameter steps : |dx|=1.45m, max(dxi)=1.42m for number i=1, min(dxi)=0.26m for number i=2
Current steps in linear search : i=0, step size is t=3.22m, clampings=0
Hint : Switched to double-sided gradient because : Close to end. 
Hint : Double-sided gradient formula used

Current real Hessian Matrix H  : 
420.628614, -289.042071
-289.042071, 200.000000

RMS value of diagonal matrix entries : 329.34
RMS value of non-diagonal entries : 289.04
Ratio of RMS values : 1.139:1

Current real inverse Hessian Matrix : 
 0.344588,  0.498002
 0.498002,  0.724717

Current inverse Hessian Matrix from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 83.86%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.32:1.
Current eigenvalues of real iH :  1.067690977,  0.001613705
Current eigenvalues of BFGS iH :  1.000000000,  1.000000000

Gradient iterations : 200, f=77.436m, |g|=0.45 - max. number of iterations reached (maybe increase it).
Number of warnings during optimization : 198
Function calls in gradient calculation : 413
Function calls in line search : 450
Single-sided gradient calculations : 196
Double-sided gradient calculations : 5
f=77.4362m compared to 24.2000 at start
Sum of all dx steps : 2.872 compared to direct step of 1.982 (ratio is 1.45:1)
|g|=0.4467 compared to 232.8546 at start

Final X vector :      0.722595178,  0.519946552
Compared to start X : -1.200000000,  1.000000000
X(start)-X(final) : -1.922595  0.480053 
Final G vector :      0.080276349, -0.439447907
Compared to start G : -215.586700191, -87.998000000

Real final Hessian matrix H : 
420.628614, -289.042071
-289.042071, 200.000000

RMS value of diagonal matrix entries : 329.34
RMS value of non-diagonal entries : 289.04
Ratio of RMS values : 1.139:1

Real final inverse Hessian matrix iH : 
 0.344588,  0.498002
 0.498002,  0.724717

inverse H from BFGS : 
 1.000000,  0.000000
 0.000000,  1.000000

Sign mismatches in matrices : 0 of 4 (0.00%)
Normalized average entry difference in matrices : 83.86%
Hint : Angle between S via iH and real iH is 0.46. Length ratio is 1.32:1.
Eigenvalues of real final iH :  1.067690977,  0.001613705
Eigenvalues of final BFGS iH :  1.000000000,  1.000000000

Eigenvector 1 :  0.000000000,  1.000000000
Eigenvector 2 :  1.000000000,  0.000000000

Post-evaluation of optimization progress :
Step size parameter t : maximum=1.878, minimum=0.801m, average=15.989m

Gradient reached geometric mean of max(final value,goal)=0.45 and start value (go=232.85) at iteration 1
Function decreased already by 99% at iteration 17
Function decreased already by 99.9% at iteration 140
All parameters at better than 3% to final ones already at iteration 167
All parameters at better than 1% to final ones already at iteration 189

