org.apache.commons.math.special
Class Erf

java.lang.Object
  org.apache.commons.math.special.Erf

All Implemented Interfaces:

Serializable

public class Erf

extends Object

implements Serializable

This is a utility class that provides computation methods related to the error functions.

Version:

$Revision: 1.2 $ $Date: 2004/06/23 16:26:17 $

See Also:

Serialized Form

Method Summary

static double

erf(double x) Returns the error function erf(x).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

erf

public static double erf(double x)
                  throws MathException

Returns the error function erf(x). The implementation of this method is based on:

• Erf, equation (3).

Parameters:

x - the value.

Returns:

the error function erf(x)

Throws:

MathException - if the algorithm fails to converge.