erf

erf

Compute the Error Function

Portability: UNIX compatible

SYNOPSIS
DESCRIPTION
RETURN VALUE
EXAMPLE
RELATED FUNCTIONS
SEE ALSO

SYNOPSIS

#include <lcmath.h>

double erf(double x);

DESCRIPTION

erf computes the error function of its argument x . The value returned by erf is defined by this equation:

[IMAGE]

RETURN VALUE

erf returns the error function of its argument.

EXAMPLE

This example computes the error function using erf :

#include <stdio.h>
#include <lcmath.h>

#define SVECTOR .7854

main()
{
   double erfv;
   erfv = erf(SVECTOR);
   printf("erf(%f) = %f\n", SVECTOR, erfv);
}

RELATED FUNCTIONS

erfc , _matherr

SEE ALSO

Mathematical Functions

Chapter Contents
Previous
Next
Top of Page