Defect in XSH exp

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        Defect report from : Loic Domaigne , personal interest

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@ page 0 line 0 section exp comment {exp}

Problem:

Edition of Specification (Year): 2003

Defect code :  2. Omission

Missing Example.

Action:

Computing the density function of the standard normal distribution

This example shows a possible implementation using exp() 
for computing the density function of the standard normal distribution.


#include <math.h>

double
normal_density (double  x
                )
{
  static double c = 0.39894228040143267794;  /* 1.0/sqrt(2*M_PI) */

  return c*exp(-x*x/2);
}