lgammal.c File Reference

#include "../math.h"

Functions
long double	lgammal (long double x)
	Compute gamma function. More...

Function Documentation

lgammal()

long double lgammal

(

long double

x

)

Compute gamma function.

The lgammal functions compute the natural logarithm of the absolute value of gamma of x. A range error occurs if x is too large. A pole error may occur if x is a negative integer or zero.

Parameters

x	Parameter for the log-gamma function.

Returns

The lgammal functions return log_e | Γ(x) |.