22-May-2024 19:07:08

sigmoid_derivative_test():
  MATLAB/Octave version 6.4.0
  Test sigmoid_derivative.

sigmoid_derivative_coef_test():
  sigmoid_derivative_coef() returns the coefficients of
  the expansion of the nth derivative of the sigmoid
  function in terms of powers of the sigmoid function.

s^(0)(x) = 
     +1.000000 * s(x)

s^(1)(x) = 
     +1.000000 * s(x)
     -1.000000 * s(x)^2

s^(2)(x) = 
     +1.000000 * s(x)
     -3.000000 * s(x)^2
     +2.000000 * s(x)^3

s^(3)(x) = 
     +1.000000 * s(x)
     -7.000000 * s(x)^2
    +12.000000 * s(x)^3
     -6.000000 * s(x)^4

s^(4)(x) = 
     +1.000000 * s(x)
    -15.000000 * s(x)^2
    +50.000000 * s(x)^3
    -60.000000 * s(x)^4
    +24.000000 * s(x)^5

sigmoid_derivative_value_test():
  sigmoid_derivative_value() evaluates the nth derivative
  of the sigmoid function at the location x.
  Graphics saved as "sigmoid_derivative_0.png"
  Graphics saved as "sigmoid_derivative_1.png"
  Graphics saved as "sigmoid_derivative_2.png"
  Graphics saved as "sigmoid_derivative_3.png"

sigmoid_derivative_test:
  Normal end of execution.

22-May-2024 19:07:09