public class GammaFunction
extends java.lang.Object
Constructor | Description |
---|---|
GammaFunction() |
Modifier and Type | Method | Description |
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static double |
incompleteGammaP(double a,
double x) |
Incomplete Gamma function P(a,x) = 1-Q(a,x)
(a cleanroom implementation of Numerical Recipes gammp(a,x);
in Mathematica this function is 1-GammaRegularized)
|
static double |
incompleteGammaP(double a,
double x,
double lnGammaA) |
Incomplete Gamma function P(a,x) = 1-Q(a,x)
(a cleanroom implementation of Numerical Recipes gammp(a,x);
in Mathematica this function is 1-GammaRegularized)
|
static double |
incompleteGammaQ(double a,
double x) |
Incomplete Gamma function Q(a,x)
(a cleanroom implementation of Numerical Recipes gammq(a,x);
in Mathematica this function is called GammaRegularized)
|
static double |
lnGamma(double alpha) |
log Gamma function: ln(gamma(alpha)) for alpha>0, accurate to 10 decimal places
|
public static double lnGamma(double alpha)
alpha
- argumentpublic static double incompleteGammaQ(double a, double x)
a
- parameterx
- argumentpublic static double incompleteGammaP(double a, double x)
a
- parameterx
- argumentpublic static double incompleteGammaP(double a, double x, double lnGammaA)
a
- parameterx
- argumentlnGammaA
- precomputed lnGamma(a)http://code.google.com/p/jebl2/