Class Log
- java.lang.Object
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- org.apache.commons.math3.analysis.function.Log
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- All Implemented Interfaces:
DifferentiableUnivariateFunction
,UnivariateDifferentiableFunction
,UnivariateFunction
public class Log extends Object implements UnivariateDifferentiableFunction, DifferentiableUnivariateFunction
Natural logarithm function.- Since:
- 3.0
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Constructor Summary
Constructors Constructor Description Log()
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description UnivariateFunction
derivative()
Deprecated.as of 3.1, replaced byvalue(DerivativeStructure)
double
value(double x)
Compute the value of the function.DerivativeStructure
value(DerivativeStructure t)
Simple mathematical function.
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Method Detail
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value
public double value(double x)
Compute the value of the function.- Specified by:
value
in interfaceUnivariateFunction
- Parameters:
x
- Point at which the function value should be computed.- Returns:
- the value of the function.
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derivative
@Deprecated public UnivariateFunction derivative()
Deprecated.as of 3.1, replaced byvalue(DerivativeStructure)
Returns the derivative of the function- Specified by:
derivative
in interfaceDifferentiableUnivariateFunction
- Returns:
- the derivative function
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value
public DerivativeStructure value(DerivativeStructure t)
Simple mathematical function.UnivariateDifferentiableFunction
classes compute both the value and the first derivative of the function.- Specified by:
value
in interfaceUnivariateDifferentiableFunction
- Parameters:
t
- function input value- Returns:
- function result
- Since:
- 3.1
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