libm/include/math.h

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2008  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19
  20 #ifndef _MATH_H
  21 #define _MATH_H
  22
  23 #define E 2.7182818284590452354 //e
  24 #define PI 3.14159265358979323846 //pi
  25 #define PI_X2 6.28318530717958647692 //2*pi
  26 #define PI_2 1.57079632679489661923 //pi/2
  27 #define PI_4 0.78539816339744830962 //pi/4
  28 #define T 0.5
  29
  30 /* math function's externs */
  31 extern double fabs (double x);
  32 extern double fmod (double x, double y);
  33 extern double sin (double x);
  34 extern double cos (double x);
  35 extern double pow (double x, double y);
  36
  37 #endif