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Gamma

LabWindows/CVI

Gamma

Advanced Analysis Library Only

double Gamma (double x, double *a);

Purpose

Evaluates the gamma function or the regularized gamma function, depending on the value of a. The gamma function is defined as follows:

The regularized gamma function is defined as follows:

The following formula relates the gamma function to the factorial function:

Parameters

Input
Name Type Description
x double The point at which the gamma function is evaluated.
a double * The upper limit of the regularized gamma function. The gamma function is evaluated if a is NULL. Otherwise, the regularized gamma function is evaluated.

Return Value

Name Type Description
result double The value of the evaluated gamma or regularized gamma function.

Additional Information

Library: Advanced Analysis Library

Include file: analysis.h

LabWindows/CVI compatibility: LabWindows/CVI 8.0 and later