Top Description Constructors Methods
org.apache.commons.math3.analysis.function

public Class Log

extends Object
implements UnivariateDifferentiableFunction, DifferentiableUnivariateFunction
Class Inheritance
All Implemented Interfaces
org.apache.commons.math3.analysis.DifferentiableUnivariateFunction, org.apache.commons.math3.analysis.UnivariateFunction, org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction
Imports
org.apache.commons.math3.analysis.FunctionUtils, .UnivariateFunction, .DifferentiableUnivariateFunction, org.apache.commons.math3.analysis.differentiation.DerivativeStructure, .UnivariateDifferentiableFunction, org.apache.commons.math3.util.FastMath

Deprecated

as a consequence of DifferentiableUnivariateFunction being deprecated. See corresponding docs for further information.

Natural logarithm function.
Since
3.0

Constructor Summary

AccessConstructor and Description
public
Log()

Method Summary

Modifier and TypeMethod and Description
public UnivariateFunction
derivative()

Implements org.apache.commons.math3.analysis.DifferentiableUnivariateFunction.derivative.

Deprecated as of 3.1, replaced by value(DerivativeStructure)

Returns the derivative of the function

public double
value(double
Point at which the function value should be computed.
x)

Implements org.apache.commons.math3.analysis.UnivariateFunction.value.

Compute the value of the function.

public DerivativeStructure
value(final DerivativeStructure
function input value
t)

Implements org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction.value.

Simple mathematical function.

Inherited from java.lang.Object:
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Constructor Detail

Logback to summary
public Log()

Method Detail

derivativeback to summary
public UnivariateFunction derivative()

Implements org.apache.commons.math3.analysis.DifferentiableUnivariateFunction.derivative.

Doc from org.apache.commons.math3.analysis.DifferentiableUnivariateFunction.derivative.

Deprecated

as of 3.1, replaced by value(DerivativeStructure)

Returns the derivative of the function

Returns:UnivariateFunction

the derivative function

Annotations
@Deprecated
valueback to summary
public double value(double x)

Implements org.apache.commons.math3.analysis.UnivariateFunction.value.

Doc from org.apache.commons.math3.analysis.UnivariateFunction.value.

Compute the value of the function.

Parameters
x:double

Point at which the function value should be computed.

Returns:double

the value of the function.

valueback to summary
public DerivativeStructure value(final DerivativeStructure t)

Implements org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction.value.

Doc from org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction.value.

Simple mathematical function.

UnivariateDifferentiableFunction classes compute both the value and the first derivative of the function.

Parameters
t:DerivativeStructure

function input value

Returns:DerivativeStructure

function result

Since
3.1