1 /* @(#)w_gamma.c 5.1 93/09/24 */ 2 /* 3 * ==================================================== 4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 5 * 6 * Developed at SunPro, a Sun Microsystems, Inc. business. 7 * Permission to use, copy, modify, and distribute this 8 * software is freely granted, provided that this notice 9 * is preserved. 10 * ==================================================== 11 */ 12 13 /* double gamma(double x) 14 * Return the logarithm of the Gamma function of x. 15 * 16 * Method: call gamma_r 17 */ 18 19 #include "math.h" 20 #include "math_private.h" 21 22 extern int signgam; 23 24 double 25 gamma(double x) 26 { 27 return lgamma_r(x,&signgam); 28 } 29