usr/src/include/math.h

/*
 * Copyright (c) 1985, 1990, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)math.h      8.1 (Berkeley) %G%
 */

#ifndef _MATH_H_
#define _MATH_H_

#if defined(vax) || defined(tahoe)              /* DBL_MAX from float.h */
#define HUGE_VAL        1.701411834604692294E+38
#else
#define HUGE_VAL        1e500                   /* IEEE: positive infinity */
#endif

#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
#if defined(vax) || defined(tahoe)
/*
 * HUGE for the VAX and Tahoe converts to the largest possible F-float value.
 * This implies an understanding of the conversion behavior of atof(3).  It
 * was defined to be the largest float so that overflow didn't occur when it
 * was assigned to a single precision number.  HUGE_VAL is strongly preferred.
 */
#define HUGE    1.701411733192644270E+38
#else
#define HUGE    HUGE_VAL
#endif

#define M_E             2.7182818284590452354   /* e */
#define M_LOG2E         1.4426950408889634074   /* log 2e */
#define M_LOG10E        0.43429448190325182765  /* log 10e */
#define M_LN2           0.69314718055994530942  /* log e2 */
#define M_LN10          2.30258509299404568402  /* log e10 */
#define M_PI            3.14159265358979323846  /* pi */
#define M_PI_2          1.57079632679489661923  /* pi/2 */
#define M_PI_4          0.78539816339744830962  /* pi/4 */
#define M_1_PI          0.31830988618379067154  /* 1/pi */
#define M_2_PI          0.63661977236758134308  /* 2/pi */
#define M_2_SQRTPI      1.12837916709551257390  /* 2/sqrt(pi) */
#define M_SQRT2         1.41421356237309504880  /* sqrt(2) */
#define M_SQRT1_2       0.70710678118654752440  /* 1/sqrt(2) */
#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */

#include <sys/cdefs.h>

__BEGIN_DECLS
__pure  double  acos __P((double));
__pure  double  asin __P((double));
__pure  double  atan __P((double));
__pure  double  atan2 __P((double, double));
__pure  double  ceil __P((double));
__pure  double  cos __P((double));
__pure  double  cosh __P((double));
__pure  double  exp __P((double));
__pure  double  fabs __P((double));
__pure  double  floor __P((double));
__pure  double  fmod __P((double, double));
        double  frexp __P((double, int *));
__pure  double  ldexp __P((double, int));
__pure  double  log __P((double));
__pure  double  log10 __P((double));
        double  modf __P((double, double *));
__pure  double  pow __P((double, double));
__pure  double  sin __P((double));
__pure  double  sinh __P((double));
__pure  double  sqrt __P((double));
__pure  double  tan __P((double));
__pure  double  tanh __P((double));

#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
__pure  double  acosh __P((double));
__pure  double  asinh __P((double));
__pure  double  atanh __P((double));
        double  cabs(); /* we can't describe cabs()'s argument properly */
__pure  double  cbrt __P((double));
__pure  double  copysign __P((double, double));
__pure  double  drem __P((double, double));
__pure  double  erf __P((double));
__pure  double  erfc __P((double));
__pure  double  expm1 __P((double));
__pure  int     finite __P((double));
__pure  double  hypot __P((double, double));
#if defined(vax) || defined(tahoe)
__pure  double  infnan __P((int));
#endif
__pure  int     isinf __P((double));
__pure  int     isnan __P((double));
__pure  double  j0 __P((double));
__pure  double  j1 __P((double));
__pure  double  jn __P((int, double));
__pure  double  lgamma __P((double));
__pure  double  log1p __P((double));
__pure  double  logb __P((double));
__pure  double  rint __P((double));
__pure  double  scalb __P((double, int));
__pure  double  y0 __P((double));
__pure  double  y1 __P((double));
__pure  double  yn __P((int, double));
#endif

__END_DECLS

#endif /* _MATH_H_ */