C# Класс Accord.Math.Gamma

Set of special mathematic functions.

References: Cephes Math Library, http://www.netlib.org/cephes/

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Открытые методы

Метод	Описание
Digamma ( double x ) : double	Digamma function.
Function ( double x ) : double	Gamma function of the specified value.
Inverse ( double a, double y ) : double	Inverse of the complemented incomplete Gamma integral (UpperIncomplete, Q).
InverseLowerIncomplete ( double a, double y ) : double	Inverse of the incomplete Gamma integral (LowerIncomplete, P).
InverseUpperIncomplete ( double a, double y ) : double	Inverse of the complemented incomplete Gamma integral (UpperIncomplete, Q).
Log ( double x ) : double	Natural logarithm of the gamma function.
Log ( double x, int p ) : double	Natural logarithm of the multivariate Gamma function.
LowerIncomplete ( double a, double x ) : double	Lower incomplete regularized gamma function P (a.k.a. the incomplete Gamma function). This function is equivalent to P(x) = γ(s, x) / Γ(s).
Multivariate ( double x, int p ) : double	Multivariate Gamma function
Stirling ( double x ) : double	Gamma function as computed by Stirling's formula.
Trigamma ( double x ) : double	Trigamma function. This code has been adapted from the FORTRAN77 and subsequent C code by B. E. Schneider and John Burkardt. The code had been made public under the GNU LGPL license.
UpperIncomplete ( double a, double x ) : double	Upper incomplete regularized Gamma function Q (a.k.a the incomplete complemented Gamma function) This function is equivalent to Q(x) = Γ(s, x) / Γ(s).

Приватные методы

Метод	Описание
inverse ( double a, double y ) : double

Описание методов

Digamma() публичный статический метод

Digamma function.

public static Digamma ( double x ) : double
x	double
Результат	double

Function() публичный статический метод

Gamma function of the specified value.

public static Function ( double x ) : double
x	double
Результат	double

Inverse() публичный статический метод

Inverse of the complemented incomplete Gamma integral (UpperIncomplete, Q).

public static Inverse ( double a, double y ) : double
a	double
y	double
Результат	double

InverseLowerIncomplete() публичный статический метод

Inverse of the incomplete Gamma integral (LowerIncomplete, P).

public static InverseLowerIncomplete ( double a, double y ) : double
a	double
y	double
Результат	double

InverseUpperIncomplete() публичный статический метод

Inverse of the complemented incomplete Gamma integral (UpperIncomplete, Q).

public static InverseUpperIncomplete ( double a, double y ) : double
a	double
y	double
Результат	double

Log() публичный статический метод

Natural logarithm of the gamma function.

public static Log ( double x ) : double
x	double
Результат	double

Log() публичный статический метод

Natural logarithm of the multivariate Gamma function.

public static Log ( double x, int p ) : double
x	double
p	int
Результат	double

LowerIncomplete() публичный статический метод

Lower incomplete regularized gamma function P (a.k.a. the incomplete Gamma function).

This function is equivalent to P(x) = γ(s, x) / Γ(s).

public static LowerIncomplete ( double a, double x ) : double
a	double
x	double
Результат	double

Multivariate() публичный статический метод

Multivariate Gamma function

public static Multivariate ( double x, int p ) : double
x	double
p	int
Результат	double

Stirling() публичный статический метод

Gamma function as computed by Stirling's formula.

public static Stirling ( double x ) : double
x	double
Результат	double

Trigamma() публичный статический метод

Trigamma function.

This code has been adapted from the FORTRAN77 and subsequent C code by B. E. Schneider and John Burkardt. The code had been made public under the GNU LGPL license.

public static Trigamma ( double x ) : double
x	double
Результат	double

UpperIncomplete() публичный статический метод

Upper incomplete regularized Gamma function Q (a.k.a the incomplete complemented Gamma function)

This function is equivalent to Q(x) = Γ(s, x) / Γ(s).

public static UpperIncomplete ( double a, double x ) : double
a	double
x	double
Результат	double