 Iteration  Func-count   Grad-count         f(x)         Step-size
     0           1           1             1958.28    
     1           2           2             1911.95      0.00221514
     2           6           6             1877.23           0.001
     3           9           9                1847            0.01
     4          12          12             1845.58       0.0163264
     5          14          14             1787.72             0.5
     6          18          18             1781.43      0.00238076
     7          22          22             1771.39       0.0225751
     8          23          23             1730.37               1
     9          24          24             1723.09               1
    10          25          25             1720.62               1
    11          26          26             1720.31               1
    12          27          27              1719.5               1
    13          28          28             1719.15               1
    14          29          29             1718.86               1
    15          30          30             1718.68               1
    16          31          31             1718.47               1
    17          32          32             1718.41               1
    18          33          33             1718.28               1
    19          34          34             1718.15               1
    20          35          35             1717.93               1
    21          36          36             1717.68               1
    22          37          37              1717.1               1
    23          38          38             1716.73               1
    24          40          40             1716.48             0.1
    25          42          42             1716.22             0.1
    26          44          44             1715.82        0.357093
    27          45          45             1715.53               1
    28          46          46             1715.25               1
    29          47          47                1715               1
    30          48          48             1714.92               1
    31          49          49             1714.84               1
    32          51          51             1714.71        0.230448
    33          53          53             1714.63             0.1
    34          54          54              1714.5               1
    35          59          59             1713.39        0.344853
    36          62          62             1713.36       0.0398992
    37          64          64                1713        0.465217
    38          65          65             1712.46               1
    39          66          66             1711.82               1
    40          67          67             1711.67               1
    41          68          68             1711.67               1
    42          69          69             1711.67               1
    43          70          70             1711.67               1
 Optimizer Results
  Algorithm Used: Broyden-Fletcher-Goldfarb-Shanno (BFGS)
  Exit message : Change in x was smaller than the specified tolerance TolX.
  Iterations : 44
  Function Count : 71
  Minimum found : 1711.6691
  Intern Time : 0.22471 seconds
  Total Time : 8.3825 seconds

 gp hyperparameters: 
 
    0.7965    2.4325   -1.1382    1.1745   -3.6053    1.8489   -0.1535    1.9498    1.9306

Demo completed in 0.217 minutes
