libm/include/math.h

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2008  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   4  *  Copyright (C) 2009  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   5  *
   6  *  This program is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20
  21 #ifndef _MATH_H
  22 #define _MATH_H
  23
  24 #define E 2.7182818284590452354 //e
  25 #define PI 3.14159265358979323846 //pi
  26 #define PI_X2 6.28318530717958647692 //2*pi
  27 #define PI_2 1.57079632679489661923 //pi/2
  28 #define PI_4 0.78539816339744830962 //pi/4
  29 #define T 0.5
  30
  31 #define M_PI PI
  32
  33 /* math function's externs */
  34 extern double fabs (double x);
  35 extern double fmod (double x, double y);
  36 extern double sin (double x);
  37 extern double cos (double x);
  38 extern double pow (double x, double y);
  39 extern double floor (double x);
  40 extern double sqrt (double x);
  41
  42 #endif