23 May 2024  10:11:52.202 AM

sigmoid_derivative_test():
  Fortran90 version
  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) = 
         +   1.00000     * s(x)
 
  s^(1)(x) = 
         +   1.00000     * s(x)
         -   1.00000     * s(x) ^   2
 
  s^(2)(x) = 
         +   1.00000     * s(x)
         -   3.00000     * s(x) ^   2
         +   2.00000     * s(x) ^   3
 
  s^(3)(x) = 
         +   1.00000     * s(x)
         -   7.00000     * s(x) ^   2
         +   12.0000     * s(x) ^   3
         -   6.00000     * s(x) ^   4
 
  s^(4)(x) = 
         +   1.00000     * s(x)
         -   15.0000     * s(x) ^   2
         +   50.0000     * s(x) ^   3
         -   60.0000     * s(x) ^   4
         +   24.0000     * s(x) ^   5

sigmoid_derivative_value_test():
  sigmoid_derivative_value() evaluates the nth derivative
  of the sigmoid function at the location x.
 
  Created graphics data file "sigmoid_derivative_0_data.txt".
  Created command file "sigmoid_derivative_0_commands.txt".
 
  Created graphics data file "sigmoid_derivative_1_data.txt".
  Created command file "sigmoid_derivative_1_commands.txt".
 
  Created graphics data file "sigmoid_derivative_2_data.txt".
  Created command file "sigmoid_derivative_2_commands.txt".
 
  Created graphics data file "sigmoid_derivative_3_data.txt".
  Created command file "sigmoid_derivative_3_commands.txt".

sigmoid_derivative_test():
  Normal end of execution.

23 May 2024  10:11:52.203 AM