1 2 /* @(#)e_gamma.c 1.3 95/01/18 */ 3 /* 4 * ==================================================== 5 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 6 * 7 * Developed at SunSoft, a Sun Microsystems, Inc. business. 8 * Permission to use, copy, modify, and distribute this 9 * software is freely granted, provided that this notice 10 * is preserved. 11 * ==================================================== 12 * 13 */ 14 15 #include <sys/cdefs.h> 16 __FBSDID("$FreeBSD$"); 17 18 /* gamma(x) 19 * Return the logarithm of the Gamma function of x. 20 * 21 * Method: call gamma_r 22 */ 23 24 #include "math.h" 25 #include "math_private.h" 26 27 extern int signgam; 28 29 double 30 gamma(double x) 31 { 32 return gamma_r(x,&signgam); 33 } 34