00001 /* $Id$ */ 00002 00003 /* GenLib2 - General Library 2 00004 * Copyright (C) 2005 Dirk Stallmann 00005 * 00006 * This program is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU General Public License 00008 * as published by the Free Software Foundation; either version 2 00009 * of the License, or (at your option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License 00017 * along with this program; if not, write to the Free Software 00018 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00019 */ 00020 00021 #ifndef GENLIB2_MPC_INCLUDED 00022 #define GENLIB2_MPC_INCLUDED 00023 00024 // pi 00025 #ifndef M_PI 00026 #define M_PI 3.14159265358979323846 00027 #endif 00028 00029 // pi/2 00030 #ifndef M_PI_2 00031 #define M_PI_2 1.57079632679489661923 00032 #endif 00033 00034 // pi/4 00035 #ifndef M_PI_4 00036 #define M_PI_4 0.78539816339744830962 00037 #endif 00038 00039 namespace GenLib2 00040 { 00041 // constants... 00042 00043 const double sqrt2 = 1.4142135623730950488; // square root of 2 (M_SQRT2) 00044 const double sqrt3 = 1.7320508075688772935; // square root of 3 00045 00046 const double rho_deg = 180. / M_PI; // radian to degree conversion factor 00047 const double rho_min = rho_deg * 60.; // radian to minutes conversion factor 00048 const double rho_sec = rho_min * 60.; // radian to seconds conversion factor 00049 const double rho_gon = 200. / M_PI; // radian to gon conversion factor 00050 00051 00052 // mathematical functions... 00053 00054 } // namespace GenLib2 00055 00056 #endif /* GENLIB2_MPC_INCLUDED */