The Complementary Error Function.

Contents

Interface Function Documentation Page Comments

Interface

#include <codecogs/maths/special/errorfnc.h>

using namespace Maths::Special;

	double	errorFnC (double x) The Complementary Error Function.
	Real	cc_specialErrorFnC (Real x) This function is available as a Microsoft Excel add-in.

Function Documentation

The complementary error function, usually denoted as erfc is directly related to the Error Function by:

  errorFnC(x) = 1 -  errorFn(x)

Thus It therefore has the following shape:

Example:

#include <codecogs/maths/special/errorfnc.h>
#include <stdio.h>
using namespace Maths::Special;
int main()
{
  double x = 0.5;
  printf("\n errorFnC(%f) = %f", x, errorFnC(x));
}

Output:

errorFn(0.500000) = 0.479500

Parameters:

x	is the lower limit of the integration

Returns:

the Complementary Error Function

References:

http://mathworld.wolfram.com/Erfc.html

Authors:

Vince Cole (March 2005)