Class LogGamma
- java.lang.Object
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- dev.nm.analysis.function.rn2r1.AbstractRealScalarFunction
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- dev.nm.analysis.function.rn2r1.univariate.AbstractUnivariateRealFunction
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- dev.nm.analysis.function.special.gamma.LogGamma
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- All Implemented Interfaces:
Function<Vector,Double>
,RealScalarFunction
,UnivariateRealFunction
public class LogGamma extends AbstractUnivariateRealFunction
The log-Gamma function, \(\log (\Gamma(z))\), for positive real numbers, is the log of the Gamma function.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
LogGamma.Method
the available methods to compute \(\log (\Gamma(z))\)-
Nested classes/interfaces inherited from interface dev.nm.analysis.function.Function
Function.EvaluationException
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Constructor Summary
Constructors Constructor Description LogGamma()
Construct an instance of log-Gamma.LogGamma(LogGamma.Method method, Lanczos lanczos)
Construct an instance of log-Gamma.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description double
evaluate(double x)
Evaluate the log of the Gamma function in the positive real domain.-
Methods inherited from class dev.nm.analysis.function.rn2r1.univariate.AbstractUnivariateRealFunction
evaluate
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Methods inherited from class dev.nm.analysis.function.rn2r1.AbstractRealScalarFunction
dimensionOfDomain, dimensionOfRange
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface dev.nm.analysis.function.Function
dimensionOfDomain, dimensionOfRange
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Constructor Detail
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LogGamma
public LogGamma(LogGamma.Method method, Lanczos lanczos)
Construct an instance of log-Gamma.- Parameters:
method
- the Lanczos computation to uselanczos
- the Lanczos approximation to use
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LogGamma
public LogGamma()
Construct an instance of log-Gamma.
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