lgamma_r.c File Reference

#include "ruby/missing.h"
#include <math.h>
#include <errno.h>

Go to the source code of this file.

Macros
#define	PI   3.14159265358979324 /* $\pi$ */
#define	LOG_2PI   1.83787706640934548 /* $\log 2\pi$ */
#define	LOG_PI   1.14472988584940017 /* $\log_e \pi$ */
#define	N   8
#define	B0   1 /* Bernoulli numbers */
#define	B1   (-1.0 / 2.0)
#define	B2   ( 1.0 / 6.0)
#define	B4   (-1.0 / 30.0)
#define	B6   ( 1.0 / 42.0)
#define	B8   (-1.0 / 30.0)
#define	B10   ( 5.0 / 66.0)
#define	B12   (-691.0 / 2730.0)
#define	B14   ( 7.0 / 6.0)
#define	B16   (-3617.0 / 510.0)

Functions
double	lgamma_r (double x, int *signp)

Macro Definition Documentation

B0

#define B0   1 /* Bernoulli numbers */

Definition at line 22 of file lgamma_r.c.

B1

#define B1   (-1.0 / 2.0)

Definition at line 23 of file lgamma_r.c.

B10

#define B10   ( 5.0 / 66.0)

Definition at line 28 of file lgamma_r.c.

B12

#define B12   (-691.0 / 2730.0)

Definition at line 29 of file lgamma_r.c.

B14

#define B14   ( 7.0 / 6.0)

Definition at line 30 of file lgamma_r.c.

B16

#define B16   (-3617.0 / 510.0)

Definition at line 31 of file lgamma_r.c.

B2

#define B2   ( 1.0 / 6.0)

Definition at line 24 of file lgamma_r.c.

B4

#define B4   (-1.0 / 30.0)

Definition at line 25 of file lgamma_r.c.

B6

#define B6   ( 1.0 / 42.0)

Definition at line 26 of file lgamma_r.c.

B8

#define B8   (-1.0 / 30.0)

Definition at line 27 of file lgamma_r.c.

LOG_2PI

#define LOG_2PI   1.83787706640934548 /* $\log 2\pi$ */

Definition at line 18 of file lgamma_r.c.

LOG_PI

#define LOG_PI   1.14472988584940017 /* $\log_e \pi$ */

Definition at line 19 of file lgamma_r.c.

Referenced by lgamma_r().

N

#define N   8

Definition at line 20 of file lgamma_r.c.

PI

#define PI   3.14159265358979324 /* $\pi$ */

Definition at line 17 of file lgamma_r.c.

Referenced by lgamma_r().

Function Documentation

lgamma_r()

double lgamma_r	(	double	x,
		int *	signp
	)

Definition at line 63 of file lgamma_r.c.

References errno, f, LOG_PI, PI, and signbit().