projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 6affdc2b | 1 | /* |
| 87cea26c | 2 | * Copyright (c) 1985, 1990 The Regents of the University of California. |
| 6affdc2b KB |
3 | * All rights reserved. |
| 4 | * | |
| 863005e5 | 5 | * %sccs.include.redist.c% |
| 6affdc2b | 6 | * |
| 607754d7 | 7 | * @(#)math.h 5.10 (Berkeley) %G% |
| 6affdc2b | 8 | */ |
| d60db641 | 9 | |
| 5ffbda5f DS |
10 | #ifndef _MATH_H_ |
| 11 | #define _MATH_H_ | |
| 12 | ||
| 87cea26c KB |
13 | #if defined(vax) || defined(tahoe) /* DBL_MAX from float.h */ |
| 14 | #define HUGE_VAL 1.701411834604692294E+38 | |
| 4bbf6817 | 15 | #else |
| 6b421bf6 | 16 | #define HUGE_VAL 1e500 /* IEEE: positive infinity */ |
| 4bbf6817 DS |
17 | #endif |
| 18 | ||
| 19 | #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) | |
| 87cea26c KB |
20 | #if defined(vax) || defined(tahoe) |
| 21 | /* | |
| 22 | * HUGE for the VAX and Tahoe converts to the largest possible F-float value. | |
| 23 | * This implies an understanding of the conversion behavior of atof(3). It | |
| 24 | * was defined to be the largest float so that overflow didn't occur when it | |
| 25 | * was assigned to a single precision number. HUGE_VAL is strongly preferred. | |
| 26 | */ | |
| 27 | #define HUGE 1.701411733192644270E+38 | |
| 28 | #else | |
| f32d3214 | 29 | #define HUGE HUGE_VAL |
| 4bbf6817 | 30 | #endif |
| 6affdc2b | 31 | |
| 6b421bf6 KB |
32 | #define M_E 2.7182818284590452354 /* e */ |
| 33 | #define M_LOG2E 1.4426950408889634074 /* log 2e */ | |
| 34 | #define M_LOG10E 0.43429448190325182765 /* log 10e */ | |
| 35 | #define M_LN2 0.69314718055994530942 /* log e2 */ | |
| 36 | #define M_LN10 2.30258509299404568402 /* log e10 */ | |
| 37 | #define M_PI 3.14159265358979323846 /* pi */ | |
| 38 | #define M_PI_2 1.57079632679489661923 /* pi/2 */ | |
| 39 | #define M_PI_4 0.78539816339744830962 /* pi/4 */ | |
| 40 | #define M_1_PI 0.31830988618379067154 /* 1/pi */ | |
| 41 | #define M_2_PI 0.63661977236758134308 /* 2/pi */ | |
| 42 | #define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */ | |
| 43 | #define M_SQRT2 1.41421356237309504880 /* sqrt(2) */ | |
| 44 | #define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */ | |
| 607754d7 | 45 | #endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */ |
| 6b421bf6 | 46 | |
| 4bbf6817 | 47 | #include <sys/cdefs.h> |
| 6affdc2b | 48 | |
| 4bbf6817 | 49 | __BEGIN_DECLS |
| 26424332 CT |
50 | __pure double acos __P((double)); |
| 51 | __pure double asin __P((double)); | |
| 52 | __pure double atan __P((double)); | |
| 53 | __pure double atan2 __P((double, double)); | |
| 54 | __pure double ceil __P((double)); | |
| 55 | __pure double cos __P((double)); | |
| 56 | __pure double cosh __P((double)); | |
| 57 | __pure double exp __P((double)); | |
| 58 | __pure double fabs __P((double)); | |
| 59 | __pure double floor __P((double)); | |
| 60 | __pure double fmod __P((double, double)); | |
| 61 | double frexp __P((double, int *)); | |
| 62 | __pure double ldexp __P((double, int)); | |
| 63 | __pure double log __P((double)); | |
| 64 | __pure double log10 __P((double)); | |
| 65 | double modf __P((double, double *)); | |
| 66 | __pure double pow __P((double, double)); | |
| 67 | __pure double sin __P((double)); | |
| 68 | __pure double sinh __P((double)); | |
| 69 | __pure double sqrt __P((double)); | |
| 70 | __pure double tan __P((double)); | |
| 71 | __pure double tanh __P((double)); | |
| d60db641 | 72 | |
| 4bbf6817 | 73 | #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) |
| 26424332 CT |
74 | __pure double acosh __P((double)); |
| 75 | __pure double asinh __P((double)); | |
| 76 | __pure double atanh __P((double)); | |
| 77 | double cabs(); /* we can't describe cabs()'s argument properly */ | |
| 78 | __pure double cbrt __P((double)); | |
| 79 | __pure double copysign __P((double, double)); | |
| 80 | __pure double drem __P((double, double)); | |
| 81 | __pure double erf __P((double)); | |
| 82 | __pure double erfc __P((double)); | |
| 83 | __pure double expm1 __P((double)); | |
| 84 | __pure int finite __P((double)); | |
| 85 | __pure double hypot __P((double, double)); | |
| 91befe9c | 86 | #if defined(vax) || defined(tahoe) |
| 26424332 | 87 | __pure double infnan __P((int)); |
| 4bbf6817 | 88 | #endif |
| 26424332 CT |
89 | __pure int isinf __P((double)); |
| 90 | __pure int isnan __P((double)); | |
| 91 | __pure double j0 __P((double)); | |
| 92 | __pure double j1 __P((double)); | |
| 93 | __pure double jn __P((int, double)); | |
| 94 | __pure double lgamma __P((double)); | |
| 95 | __pure double log1p __P((double)); | |
| 96 | __pure double logb __P((double)); | |
| 97 | __pure double rint __P((double)); | |
| 98 | __pure double scalb __P((double, int)); | |
| 99 | __pure double y0 __P((double)); | |
| 100 | __pure double y1 __P((double)); | |
| 101 | __pure double yn __P((int, double)); | |
| 91befe9c | 102 | #endif |
| 4bbf6817 DS |
103 | |
| 104 | __END_DECLS | |
| 5ffbda5f DS |
105 | |
| 106 | #endif /* _MATH_H_ */ |