org.apache.commons.math3.analysis.function

Class Log

java.lang.Object

org.apache.commons.math3.analysis.function.Log

All Implemented Interfaces:

DifferentiableUnivariateFunction, UnivariateFunction

public class Log
extends Object
implements DifferentiableUnivariateFunction

Natural logarithm function.

Since:

3.0

Version:

$Id$

Constructor Summary

Constructors

Constructor and Description
Log()

Method Summary

Methods

Modifier and Type	Method and Description
UnivariateFunction	derivative() Returns the derivative of the function
double	value(double x) Compute the value of the function.

Methods inherited from class java.lang.Object

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

Constructor Detail

Log

public Log()

Method Detail

value

public double value(double x)

Compute the value of the function.

Specified by:

value in interface UnivariateFunction

Parameters:

x - Point at which the function value should be computed.

Returns:

the value of the function.

derivative

public UnivariateFunction derivative()

Returns the derivative of the function

Specified by:

derivative in interface DifferentiableUnivariateFunction

Returns:

the derivative function