math.h revision 1.5
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 * from: @(#)math.h 5.8 (Berkeley) 4/2/91 34 * $Id: math.h,v 1.5 1993/10/11 18:13:24 jtc Exp $ 35 */ 36 37 #ifndef _MATH_H_ 38 #define _MATH_H_ 39 40 #if defined(vax) || defined(tahoe) /* DBL_MAX from float.h */ 41 #define HUGE_VAL 1.701411834604692294E+38 42 #else 43 extern char __infinity[]; /* bytes for IEEE754 +Infinity */ 44 #define HUGE_VAL (*(double *) __infinity) 45 #endif 46 47 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) 48 #if defined(vax) || defined(tahoe) 49 /* 50 * HUGE for the VAX and Tahoe converts to the largest possible F-float value. 51 * This implies an understanding of the conversion behavior of atof(3). It 52 * was defined to be the largest float so that overflow didn't occur when it 53 * was assigned to a single precision number. HUGE_VAL is strongly preferred. 54 */ 55 #define HUGE 1.701411733192644270E+38 56 #else 57 #define HUGE HUGE_VAL 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 #endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */ 74 75 #include <sys/cdefs.h> 76 77 __BEGIN_DECLS 78 __pure double acos __P((double)); 79 __pure double asin __P((double)); 80 __pure double atan __P((double)); 81 __pure double atan2 __P((double, double)); 82 __pure double ceil __P((double)); 83 __pure double cos __P((double)); 84 __pure double cosh __P((double)); 85 __pure double exp __P((double)); 86 __pure double fabs __P((double)); 87 __pure double floor __P((double)); 88 __pure double fmod __P((double, double)); 89 double frexp __P((double, int *)); 90 __pure double ldexp __P((double, int)); 91 __pure double log __P((double)); 92 __pure double log10 __P((double)); 93 double modf __P((double, double *)); 94 __pure double pow __P((double, double)); 95 __pure double sin __P((double)); 96 __pure double sinh __P((double)); 97 __pure double sqrt __P((double)); 98 __pure double tan __P((double)); 99 __pure double tanh __P((double)); 100 101 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) 102 __pure double acosh __P((double)); 103 __pure double asinh __P((double)); 104 __pure double atanh __P((double)); 105 __pure double cabs(); /* we can't describe cabs()'s argument properly */ 106 __pure double cbrt __P((double)); 107 __pure double copysign __P((double, double)); 108 __pure double drem __P((double, double)); 109 __pure double erf __P((double)); 110 __pure double erfc __P((double)); 111 __pure double expm1 __P((double)); 112 __pure int finite __P((double)); 113 double hypot __P((double, double)); 114 #if defined(vax) || defined(tahoe) 115 __pure double infnan __P((int)); 116 #endif 117 __pure int isinf __P((double)); 118 __pure int isnan __P((double)); 119 __pure double j0 __P((double)); 120 __pure double j1 __P((double)); 121 __pure double jn __P((int, double)); 122 __pure double lgamma __P((double)); 123 __pure double log1p __P((double)); 124 __pure double logb __P((double)); 125 __pure double rint __P((double)); 126 __pure double scalb __P((double, int)); 127 __pure double y0 __P((double)); 128 __pure double y1 __P((double)); 129 __pure double yn __P((int, double)); 130 #endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */ 131 132 __END_DECLS 133 134 #endif /* _MATH_H_ */ 135
Indexes created Mon Oct 20 20:10:13 GMT 2025