Class DBeta
- java.lang.Object
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- dev.nm.analysis.function.rn2r1.AbstractRealScalarFunction
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- dev.nm.analysis.function.rn2r1.AbstractBivariateRealFunction
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- dev.nm.analysis.differentiation.univariate.DBeta
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- All Implemented Interfaces:
Function<Vector,Double>
,BivariateRealFunction
,RealScalarFunction
public class DBeta extends AbstractBivariateRealFunction
This is the first order derivative function of theBeta
function w.r.t x, \({\partial \over \partial x} \mathrm{B}(x, y)\). \[ {\partial \over \partial x} \mathrm{B}(x, y) = \mathrm{B}(x, y) (\psi(x) - \psi(x + y)) \] where \(x > 0, y > 0\), \(\psi\) is theDigamma
function.- See Also:
- Wikipedia: Derivatives,
Beta
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Nested Class Summary
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Nested classes/interfaces inherited from interface dev.nm.analysis.function.Function
Function.EvaluationException
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Constructor Summary
Constructors Constructor Description DBeta()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description double
evaluate(double x, double y)
Evaluate \({\partial \over \partial x} \mathrm{B}(x, y)\).-
Methods inherited from class dev.nm.analysis.function.rn2r1.AbstractBivariateRealFunction
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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