64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/*
|
|
* math.h - mathematics
|
|
*/
|
|
/* $Id$ */
|
|
|
|
#ifndef _MATH_H
|
|
#define _MATH_H
|
|
|
|
extern double __huge_val;
|
|
#define HUGE_VAL (__huge_val)
|
|
|
|
extern int __IsNan(double d); /* test for Not A Number */
|
|
|
|
extern double acos(double _x);
|
|
extern double asin(double _x);
|
|
extern double atan(double _x);
|
|
extern double atan2(double _y, double _x);
|
|
|
|
extern double cos(double _x);
|
|
extern double sin(double _x);
|
|
extern double tan(double _x);
|
|
|
|
extern double cosh(double _x);
|
|
extern double sinh(double _x);
|
|
extern double tanh(double _x);
|
|
|
|
extern double exp(double _x);
|
|
extern double log(double _x);
|
|
extern double log10(double _x);
|
|
|
|
extern double sqrt(double _x);
|
|
extern double ceil(double _x);
|
|
extern double fabs(double _x);
|
|
extern double floor(double _x);
|
|
|
|
extern double pow(double _x, double _y);
|
|
|
|
extern double frexp(double _x, int *_exp);
|
|
extern double ldexp(double _x, int _exp);
|
|
extern double modf(double _x, double *_iptr);
|
|
extern double fmod(double _x, double _y);
|
|
|
|
/* Some constants (Hart & Cheney). */
|
|
|
|
#define M_PI 3.14159265358979323846264338327950288
|
|
#define M_2PI 6.28318530717958647692528676655900576
|
|
#define M_3PI_4 2.35619449019234492884698253745962716
|
|
#define M_PI_2 1.57079632679489661923132169163975144
|
|
#define M_3PI_8 1.17809724509617246442349126872981358
|
|
#define M_PI_4 0.78539816339744830961566084581987572
|
|
#define M_PI_8 0.39269908169872415480783042290993786
|
|
#define M_1_PI 0.31830988618379067153776752674502872
|
|
#define M_2_PI 0.63661977236758134307553505349005744
|
|
#define M_4_PI 1.27323954473516268615107010698011488
|
|
#define M_E 2.71828182845904523536028747135266250
|
|
#define M_LOG2E 1.44269504088896340735992468100189213
|
|
#define M_LOG10E 0.43429448190325182765112891891660508
|
|
#define M_LN2 0.69314718055994530941723212145817657
|
|
#define M_LN10 2.30258509299404568401799145468436421
|
|
#define M_SQRT2 1.41421356237309504880168872420969808
|
|
#define M_1_SQRT2 0.70710678118654752440084436210484904
|
|
#define M_EULER 0.57721566490153286060651209008240243
|
|
|
|
#endif /* _MATH_H */
|