1989-05-16 13:13:53 +00:00
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/*
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* math.h - mathematics
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*/
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1994-06-24 14:02:31 +00:00
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/* $Id$ */
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1989-05-16 13:13:53 +00:00
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2007-04-24 19:42:24 +00:00
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#ifndef _MATH_H
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1989-12-18 14:00:32 +00:00
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#define _MATH_H
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1989-05-16 13:13:53 +00:00
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2007-04-24 19:42:24 +00:00
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extern double __huge_val;
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#define HUGE_VAL (__huge_val)
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1989-05-16 13:13:53 +00:00
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2007-04-24 19:42:24 +00:00
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extern int __IsNan(double d); /* test for Not A Number */
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1991-03-19 16:51:28 +00:00
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2007-04-24 19:42:24 +00:00
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extern double acos(double _x);
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extern double asin(double _x);
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extern double atan(double _x);
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extern double atan2(double _y, double _x);
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1990-01-29 10:09:00 +00:00
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2007-04-24 19:42:24 +00:00
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extern double cos(double _x);
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extern double sin(double _x);
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extern double tan(double _x);
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1990-01-29 10:09:00 +00:00
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2007-04-24 19:42:24 +00:00
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extern double cosh(double _x);
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extern double sinh(double _x);
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extern double tanh(double _x);
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1990-01-29 10:09:00 +00:00
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2007-04-24 19:42:24 +00:00
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extern double exp(double _x);
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extern double log(double _x);
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extern double log10(double _x);
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1990-01-29 10:09:00 +00:00
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2007-04-24 19:42:24 +00:00
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extern double sqrt(double _x);
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extern double ceil(double _x);
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extern double fabs(double _x);
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extern double floor(double _x);
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1990-01-29 10:09:00 +00:00
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2007-04-24 19:42:24 +00:00
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extern double pow(double _x, double _y);
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1990-01-29 10:09:00 +00:00
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2007-04-24 19:42:24 +00:00
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extern double frexp(double _x, int *_exp);
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extern double ldexp(double _x, int _exp);
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extern double modf(double _x, double *_iptr);
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extern double fmod(double _x, double _y);
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/* Some constants (Hart & Cheney). */
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#define M_PI 3.14159265358979323846264338327950288
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#define M_2PI 6.28318530717958647692528676655900576
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#define M_3PI_4 2.35619449019234492884698253745962716
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#define M_PI_2 1.57079632679489661923132169163975144
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#define M_3PI_8 1.17809724509617246442349126872981358
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#define M_PI_4 0.78539816339744830961566084581987572
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#define M_PI_8 0.39269908169872415480783042290993786
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#define M_1_PI 0.31830988618379067153776752674502872
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#define M_2_PI 0.63661977236758134307553505349005744
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#define M_4_PI 1.27323954473516268615107010698011488
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#define M_E 2.71828182845904523536028747135266250
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#define M_LOG2E 1.44269504088896340735992468100189213
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#define M_LOG10E 0.43429448190325182765112891891660508
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#define M_LN2 0.69314718055994530941723212145817657
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#define M_LN10 2.30258509299404568401799145468436421
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#define M_SQRT2 1.41421356237309504880168872420969808
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#define M_1_SQRT2 0.70710678118654752440084436210484904
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#define M_EULER 0.57721566490153286060651209008240243
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1989-05-16 13:13:53 +00:00
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1989-12-18 14:00:32 +00:00
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#endif /* _MATH_H */
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