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math.h revision 1.1 
      1 /*
      2  * Copyright (c) 1985, 1990 The Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  *
     33  *	@(#)math.h	5.8 (Berkeley) 4/2/91
     34  */
     35 
     36 #ifndef	_MATH_H_
     37 #define	_MATH_H_
     38 
     39 #if defined(vax) || defined(tahoe)		/* DBL_MAX from float.h */
     40 #define	HUGE_VAL	1.701411834604692294E+38
     41 #else
     42 #define	HUGE_VAL	1e500			/* IEEE: positive infinity */
     43 #endif
     44 
     45 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
     46 #if defined(vax) || defined(tahoe)
     47 /*
     48  * HUGE for the VAX and Tahoe converts to the largest possible F-float value.
     49  * This implies an understanding of the conversion behavior of atof(3).  It
     50  * was defined to be the largest float so that overflow didn't occur when it
     51  * was assigned to a single precision number.  HUGE_VAL is strongly preferred.
     52  */
     53 #define	HUGE	1.701411733192644270E+38
     54 #else
     55 #define	HUGE	HUGE_VAL
     56 #endif
     57 #endif
     58 
     59 #define	M_E		2.7182818284590452354	/* e */
     60 #define	M_LOG2E		1.4426950408889634074	/* log 2e */
     61 #define	M_LOG10E	0.43429448190325182765	/* log 10e */
     62 #define	M_LN2		0.69314718055994530942	/* log e2 */
     63 #define	M_LN10		2.30258509299404568402	/* log e10 */
     64 #define	M_PI		3.14159265358979323846	/* pi */
     65 #define	M_PI_2		1.57079632679489661923	/* pi/2 */
     66 #define	M_PI_4		0.78539816339744830962	/* pi/4 */
     67 #define	M_1_PI		0.31830988618379067154	/* 1/pi */
     68 #define	M_2_PI		0.63661977236758134308	/* 2/pi */
     69 #define	M_2_SQRTPI	1.12837916709551257390	/* 2/sqrt(pi) */
     70 #define	M_SQRT2		1.41421356237309504880	/* sqrt(2) */
     71 #define	M_SQRT1_2	0.70710678118654752440	/* 1/sqrt(2) */
     72 
     73 #include <sys/cdefs.h>
     74 
     75 __BEGIN_DECLS
     76 double	acos __P((double));
     77 double	asin __P((double));
     78 double	atan __P((double));
     79 double	atan2 __P((double, double));
     80 double	ceil __P((double));
     81 double	cos __P((double));
     82 double	cosh __P((double));
     83 double	exp __P((double));
     84 double	fabs __P((double));
     85 double	floor __P((double));
     86 double	fmod __P((double, double));
     87 double	frexp __P((double, int *));
     88 double	ldexp __P((double, int));
     89 double	log __P((double));
     90 double	log10 __P((double));
     91 double	modf __P((double, double *));
     92 double	pow __P((double, double));
     93 double	sin __P((double));
     94 double	sinh __P((double));
     95 double	sqrt __P((double));
     96 double	tan __P((double));
     97 double	tanh __P((double));
     98 
     99 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
    100 double	acosh __P((double));
    101 double	asinh __P((double));
    102 double	atanh __P((double));
    103 double	cabs();		/* we can't describe cabs()'s argument properly */
    104 double	cbrt __P((double));
    105 double	copysign __P((double, double));
    106 double	drem __P((double, double));
    107 double	erf __P((double));
    108 double	erfc __P((double));
    109 double	expm1 __P((double));
    110 int	finite __P((double));
    111 double	hypot __P((double, double));
    112 #if defined(vax) || defined(tahoe)
    113 double	infnan __P((int));
    114 #endif
    115 int	isinf __P((double));
    116 int	isnan __P((double));
    117 double	j0 __P((double));
    118 double	j1 __P((double));
    119 double	jn __P((int, double));
    120 double	lgamma __P((double));
    121 double	log1p __P((double));
    122 double	logb __P((double));
    123 double	rint __P((double));
    124 double	scalb __P((double, int));
    125 double	y0 __P((double));
    126 double	y1 __P((double));
    127 double	yn __P((int, double));
    128 #endif
    129 
    130 __END_DECLS
    131 
    132 #endif /* _MATH_H_ */
    133