posix/include/math.h

   1 /*
   2  * math.h
   3  *
   4  * mathematical declarations. Based on the Single UNIX(r) Specification,
   5  * Version 2
   6  *
   7  * This file is part of the ReactOS Operating System.
   8  *
   9  * Contributors:
  10  *  Created by KJK::Hyperion <noog@libero.it>
  11  *
  12  *  THIS SOFTWARE IS NOT COPYRIGHTED
  13  *
  14  *  This source code is offered for use in the public domain. You may
  15  *  use, modify or distribute it freely.
  16  *
  17  *  This code is distributed in the hope that it will be useful but
  18  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  19  *  DISCLAMED. This includes but is not limited to warranties of
  20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  21  *
  22  */
  23 #ifndef __MATH_H_INCLUDED__
  24 #define __MATH_H_INCLUDED__
  25
  26 /* INCLUDES */
  27 #ifdef __PSXDLL__
  28
  29 /* headers for internal usage by psxdll.dll and ReactOS */
  30
  31 #else /* ! __PSXDLL__ */
  32
  33 /* standard POSIX headers */
  34
  35 #endif
  36
  37 /* OBJECTS */
  38
  39 /* TYPES */
  40
  41 /* CONSTANTS */
  42 #define M_E        ((double) 2.7182818285) /* Value of e */
  43 #define M_LOG2E    ((double) 1.4426950419) /* Value of log2(e) */
  44 #define M_LOG10E   ((double) 0.4342944819) /* Value of log10(e) */
  45 #define M_LN2      ((double)-0.6931471806) /* Value of loge2 */
  46 #define M_LN10     ((double) 2.3025850929) /* Value of loge10 */
  47 #define M_PI       ((double) 3.1415926536) /* Value of Pi */
  48 #define M_PI_2     ((double) 1.5707963268) /* Value of Pi/2 */
  49 #define M_PI_4     ((double) 0.7853981634) /* Value of Pi/4 */
  50 #define M_1_PI     ((double) 0.3183098862) /* Value of 1/Pi */
  51 #define M_2_PI     ((double) 0.6366197724) /* Value of 2/Pi */
  52 #define M_2_SQRTPI ((double) 1.1283791671) /* Value of 2/Sqrt(Pi) */
  53 #define M_SQRT2    ((double) 1.4142135624) /* Value of Sqrt(2) */
  54 #define M_SQRT1_2  ((double) 0.7071067812) /* Value of Sqrt(1/2) */
  55
  56 /* PROTOTYPES */
  57
  58 /* MACROS */
  59
  60 #endif /* __MATH_H_INCLUDED__ */
  61
  62 /* EOF */
  63