gamma Subroutine

Purpose

Computes the natural logarithm of the gamma function.

The gamma: IEEE Math Library (libm.a) or System V Math Library (libmsaa.a)

#include <math.h>

extern int signgam;

double gamma (x)
double x;

The gamma subroutine computes the logarithm of the gamma function.

The sign of gamma( x) is returned in the external integer signgam.

Note: Compile any routine that uses subroutines from the libm.a with the -lm flag. To compile the lgamma.c file, enter:

cc lgamma.c -lm

Item	Description
x	Specifies the value to be computed.