09 May 2025   9:32:09.779 PM

sigmoid_test():
  Fortran90 version
  Test sigmoid.

sigmoid_coef_test():
  sigmoid_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_value_test():
  sigmoid_value() evaluates the nth derivative
  of the sigmoid function at the location x.
 
  Created graphics data file "sigmoid_0_data.txt".
  Created command file "sigmoid_0_commands.txt".
 
  Created graphics data file "sigmoid_1_data.txt".
  Created command file "sigmoid_1_commands.txt".
 
  Created graphics data file "sigmoid_2_data.txt".
  Created command file "sigmoid_2_commands.txt".
 
  Created graphics data file "sigmoid_3_data.txt".
  Created command file "sigmoid_3_commands.txt".

sigmoid_test():
  Normal end of execution.

09 May 2025   9:32:09.779 PM