gamma.c File Reference

#include "mconf.h"

Include dependency graph for gamma.c:

Go to the source code of this file.

Macros
#define	MAXGAM   171.624376956302725
#define	MAXLGM   2.556348e305
#define	MAXSTIR   143.01608

Functions
double	Gamma (double x)
double	lgam (double x)
double	lgam_sgn (double x, int *sign)
static double	stirf (double)

Variables
static double	A []
static double	B []
static double	C []
static double	LOGPI = 1.14472988584940017414
static double	LS2PI = 0.91893853320467274178
double	MAXLOG
static double	P []
static double	Q []
static double	SQTPI = 2.50662827463100050242E0
static double	STIR [5]

Macro Definition Documentation

MAXGAM

#define MAXGAM   171.624376956302725

Definition at line 117 of file gamma.c.

MAXLGM

#define MAXLGM   2.556348e305

Definition at line 271 of file gamma.c.

MAXSTIR

#define MAXSTIR   143.01608

Definition at line 129 of file gamma.c.

Function Documentation

Gamma()

double Gamma

(

double

x

)

Definition at line 160 of file gamma.c.

lgam()

double lgam

(

double

x

)

Definition at line 275 of file gamma.c.

lgam_sgn()

double lgam_sgn	(	double	x,
		int *	sign
	)

Definition at line 281 of file gamma.c.

stirf()

static double stirf ( double  x )

static

Definition at line 138 of file gamma.c.

Variable Documentation

A

double A[]

static

Initial value:

= {
    8.11614167470508450300E-4,
    -5.95061904284301438324E-4,
    7.93650340457716943945E-4,
    -2.77777777730099687205E-3,
    8.33333333333331927722E-2
}

Definition at line 241 of file gamma.c.

B

double B[]

static

Initial value:

= {
    -1.37825152569120859100E3,
    -3.88016315134637840924E4,
    -3.31612992738871184744E5,
    -1.16237097492762307383E6,
    -1.72173700820839662146E6,
    -8.53555664245765465627E5
}

Definition at line 249 of file gamma.c.

C

double C[]

static

Initial value:

= {
    
    -3.51815701436523470549E2,
    -1.70642106651881159223E4,
    -2.20528590553854454839E5,
    -1.13933444367982507207E6,
    -2.53252307177582951285E6,
    -2.01889141433532773231E6
}

Definition at line 258 of file gamma.c.

LOGPI

double LOGPI = 1.14472988584940017414

static

Definition at line 118 of file gamma.c.

LS2PI

double LS2PI = 0.91893853320467274178

static

Definition at line 269 of file gamma.c.

MAXLOG

double MAXLOG

Definition at line 57 of file const.c.

P

double P[]

static

Initial value:

= {
    1.60119522476751861407E-4,
    1.19135147006586384913E-3,
    1.04213797561761569935E-2,
    4.76367800457137231464E-2,
    2.07448227648435975150E-1,
    4.94214826801497100753E-1,
    9.99999999999999996796E-1
}

Definition at line 96 of file gamma.c.

Q

double Q[]

static

Initial value:

= {
    -2.31581873324120129819E-5,
    5.39605580493303397842E-4,
    -4.45641913851797240494E-3,
    1.18139785222060435552E-2,
    3.58236398605498653373E-2,
    -2.34591795718243348568E-1,
    7.14304917030273074085E-2,
    1.00000000000000000320E0
}

Definition at line 106 of file gamma.c.

SQTPI

double SQTPI = 2.50662827463100050242E0

static

Definition at line 130 of file gamma.c.

STIR

double STIR[5]

static

Initial value:

= {
    7.87311395793093628397E-4,
    -2.29549961613378126380E-4,
    -2.68132617805781232825E-3,
    3.47222221605458667310E-3,
    8.33333333333482257126E-2,
}

Definition at line 121 of file gamma.c.