org.apache.commons.math.analysis
Class SinFunction

java.lang.Object
  org.apache.commons.math.analysis.SinFunction

All Implemented Interfaces:

org.apache.commons.math.analysis.DifferentiableUnivariateRealFunction, org.apache.commons.math.analysis.UnivariateRealFunction

public class SinFunction
extends java.lang.Object
implements org.apache.commons.math.analysis.DifferentiableUnivariateRealFunction

Auxillary class for testing solvers. The function is extraordinarily well behaved around zero roots: it has an inflection point there (second order derivative is zero), which means linear approximation (Regula Falsi) will converge quadratically.

Version:

$Revision: 480442 $ $Date: 2006-11-29 00:21:22 -0700 (Wed, 29 Nov 2006) $

Constructor Summary

SinFunction()

Method Summary

org.apache.commons.math.analysis.UnivariateRealFunction	derivative()
double	value(double x)

Methods inherited from class java.lang.Object

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

Constructor Detail

SinFunction

public SinFunction()

Method Detail

value

public double value(double x)
             throws org.apache.commons.math.FunctionEvaluationException

Specified by:

value in interface org.apache.commons.math.analysis.UnivariateRealFunction

Throws:

org.apache.commons.math.FunctionEvaluationException

derivative

public org.apache.commons.math.analysis.UnivariateRealFunction derivative()

Specified by:

derivative in interface org.apache.commons.math.analysis.DifferentiableUnivariateRealFunction