1 2 /* 3 * ==================================================== 4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 5 * 6 * Developed at SunSoft, 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 14 /* gamma(x) 15 * Return the logarithm of the Gamma function of x. 16 * 17 * Method: call gamma_r 18 */ 19 20 #include "math.h" 21 #include "math_private.h" 22 23 extern int signgam; 24 25 double 26 gamma(double x) 27 { 28 return gamma_r(x,&signgam); 29 } 30