dev.nm.analysis.differentiation.univariate

Class DErf

java.lang.Object

dev.nm.analysis.function.rn2r1.AbstractRealScalarFunction

dev.nm.analysis.function.rn2r1.univariate.AbstractUnivariateRealFunction

dev.nm.analysis.differentiation.univariate.DErf

All Implemented Interfaces:

Function<Vector,Double>, RealScalarFunction, UnivariateRealFunction

public class DErf
extends AbstractUnivariateRealFunction

This is the first order derivative function of the Error function, Erf. \[ {d \over dx}\mbox{Erf}(x) = \frac{2}{\sqrt{\pi}}\exp(-x^2) \]

See Also:

Erf

Nested Class Summary

Nested classes/interfaces inherited from interface dev.nm.analysis.function.Function

Function.EvaluationException

Constructor Summary

Constructors

Constructor and Description
DErf()

Method Summary

Modifier and Type	Method and Description
double	evaluate(double x) Evaluate y = f(x).

Methods inherited from class dev.nm.analysis.function.rn2r1.univariate.AbstractUnivariateRealFunction

evaluate

Methods inherited from class dev.nm.analysis.function.rn2r1.AbstractRealScalarFunction

dimensionOfDomain, dimensionOfRange

Methods inherited from class java.lang.Object

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

Methods inherited from interface dev.nm.analysis.function.Function

dimensionOfDomain, dimensionOfRange

Constructor Detail

DErf

public DErf()

Method Detail

evaluate

public double evaluate(double x)

Description copied from interface: UnivariateRealFunction

Evaluate y = f(x).

Parameters:

x - x

Returns:

f(x)