[unix-history] / include / math.h

/*
 * Copyright (c) 1985, 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)math.h	5.8 (Berkeley) 4/2/91
 */

#ifndef	_MATH_H_
#define	_MATH_H_

#if defined(vax) || defined(tahoe)	/* DBL_MAX from float.h */
#define	HUGE_VAL	1.701411834604692294E+38
#else
extern char __infinity[];		/* bytes for IEEE754 +Infinity */
#define HUGE_VAL (*(double *) __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
#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) */

#include <sys/cdefs.h>

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

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

__END_DECLS

#endif /* _MATH_H_ */
Commit	Line	Data
15637ed4 RG	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
15637ed4 RG	34	*/
	35
	36	#ifndef _MATH_H_
	37	#define _MATH_H_
	38
78ed81a3	39	#if defined(vax) \|\| defined(tahoe) /* DBL_MAX from float.h */
15637ed4 RG	40	#define HUGE_VAL 1.701411834604692294E+38
15637ed4 RG	41	#else
78ed81a3	42	extern char __infinity[]; /* bytes for IEEE754 +Infinity */
78ed81a3	43	#define HUGE_VAL ((double ) __infinity)
15637ed4 RG	44	#endif
	45
	46	#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
	47	#if defined(vax) \|\| defined(tahoe)
	48	/*
	49	* HUGE for the VAX and Tahoe converts to the largest possible F-float value.
	50	* This implies an understanding of the conversion behavior of atof(3). It
	51	* was defined to be the largest float so that overflow didn't occur when it
	52	* was assigned to a single precision number. HUGE_VAL is strongly preferred.
	53	*/
	54	#define HUGE 1.701411733192644270E+38
	55	#else
	56	#define HUGE HUGE_VAL
	57	#endif
	58	#endif
	59
	60	#define M_E 2.7182818284590452354 /* e */
	61	#define M_LOG2E 1.4426950408889634074 /* log 2e */
	62	#define M_LOG10E 0.43429448190325182765 /* log 10e */
	63	#define M_LN2 0.69314718055994530942 /* log e2 */
	64	#define M_LN10 2.30258509299404568402 /* log e10 */
	65	#define M_PI 3.14159265358979323846 /* pi */
	66	#define M_PI_2 1.57079632679489661923 /* pi/2 */
	67	#define M_PI_4 0.78539816339744830962 /* pi/4 */
	68	#define M_1_PI 0.31830988618379067154 /* 1/pi */
	69	#define M_2_PI 0.63661977236758134308 /* 2/pi */
	70	#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
	71	#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
	72	#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
	73
	74	#include <sys/cdefs.h>
	75
	76	__BEGIN_DECLS
	77	double acos __P((double));
	78	double asin __P((double));
	79	double atan __P((double));
	80	double atan2 __P((double, double));
	81	double ceil __P((double));
	82	double cos __P((double));
	83	double cosh __P((double));
	84	double exp __P((double));
	85	double fabs __P((double));
	86	double floor __P((double));
	87	double fmod __P((double, double));
	88	double frexp __P((double, int *));
	89	double ldexp __P((double, int));
	90	double log __P((double));
	91	double log10 __P((double));
	92	double modf __P((double, double *));
	93	double pow __P((double, double));
	94	double sin __P((double));
	95	double sinh __P((double));
	96	double sqrt __P((double));
	97	double tan __P((double));
	98	double tanh __P((double));
	99
	100	#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
	101	double acosh __P((double));
	102	double asinh __P((double));
	103	double atanh __P((double));
	104	double cabs(); /* we can't describe cabs()'s argument properly */
	105	double cbrt __P((double));
	106	double copysign __P((double, double));
	107	double drem __P((double, double));
108	double erf __P((double));
109	double erfc __P((double));
110	double expm1 __P((double));
111	int finite __P((double));
112	double hypot __P((double, double));
113	#if defined(vax) \|\| defined(tahoe)
114	double infnan __P((int));
115	#endif
116	int isinf __P((double));
117	int isnan __P((double));
118	double j0 __P((double));
119	double j1 __P((double));
120	double jn __P((int, double));
121	double lgamma __P((double));
122	double log1p __P((double));
123	double logb __P((double));
124	double rint __P((double));
125	double scalb __P((double, int));
126	double y0 __P((double));
127	double y1 __P((double));
128	double yn __P((int, double));
129	#endif
130
131	__END_DECLS
132
133	#endif /* _MATH_H_ */