quartic_gradient1

quartic_gradient1:
  Seek local minimizer of a scalar function f(x) in [-2,2]

  Graphics saved in "quartic.png"

   it      x               f(x)         f'(x)

    0    -1.4920527     19.515185    -13.636696
    1   -0.81021796     17.425831     3.2267827
    2   -0.97155709     17.034732     1.4358546
    3    -1.0433498     16.972343    0.26065014
    4    -1.0563823     16.970504   0.020153593
    5      -1.05739     16.970493  0.0012009495

  Step size too small!

  6 gradient descent steps were taken.
  Initial x = -1.49205,  f(x) = 19.5152, f'(x) = -13.6367
  Final x = -1.05739,  f(x) = 16.9705, f'(x) = 0.00120095

  Graphics saved in "quartic_minimizer.png"

quartic_gradient1:
  Normal end of execution.
quartic_gradient1

quartic_gradient1:
  Seek local minimizer of a scalar function f(x) in [-2,2]

  Graphics saved in "quartic.png"

   it      x               f(x)         f'(x)

    0          -1.5        19.625           -14
    1          -0.8       17.4592         3.304
    2       -0.9652     17.044154     1.5280722
    3    -1.0416036     16.972825    0.29222552
    4    -1.0562149     16.970507   0.023297948
    5    -1.0573798     16.970493    0.00139357

  Step size too small!

  6 gradient descent steps were taken.
  Initial x = -1.5,  f(x) = 19.625, f'(x) = -14
  Final x = -1.05738,  f(x) = 16.9705, f'(x) = 0.00139357

  Graphics saved in "quartic_minimizer.png"

quartic_gradient1:
  Normal end of execution.