| /* poly/eval.c |
| * |
| * Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or (at |
| * your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #include <config.h> |
| #include <gsl/gsl_poly.h> |
| |
| /*-*-*-*-*-*-*-*-*-*-*-* Functions w/ Natural Prototypes *-*-*-*-*-*-*-*-*-*-*-*/ |
| |
| /* checked OK [GJ] Tue May 5 12:19:56 MDT 1998 */ |
| |
| #ifndef HIDE_INLINE_STATIC |
| double |
| gsl_poly_eval(const double c[], const int len, const double x) |
| { |
| int i; |
| double ans = c[len-1]; |
| for(i=len-1; i>0; i--) ans = c[i-1] + x * ans; |
| return ans; |
| } |
| #endif |
