xref: /plan9/386/include/ape/math.h (revision 3ff48bf5ed603850fcd251ddf13025d23d693782)
13e12c5d1SDavid du Colombier #ifndef __MATH
23e12c5d1SDavid du Colombier #define __MATH
33e12c5d1SDavid du Colombier #pragma lib "/$M/lib/ape/libap.a"
43e12c5d1SDavid du Colombier 
53e12c5d1SDavid du Colombier /* a HUGE_VAL appropriate for IEEE double-precision */
63e12c5d1SDavid du Colombier /* the correct value, 1.797693134862316e+308, causes a ken overflow */
73e12c5d1SDavid du Colombier #define HUGE_VAL 1.79769313486231e+308
83e12c5d1SDavid du Colombier 
93e12c5d1SDavid du Colombier #ifdef __cplusplus
103e12c5d1SDavid du Colombier extern "C" {
113e12c5d1SDavid du Colombier #endif
123e12c5d1SDavid du Colombier 
133e12c5d1SDavid du Colombier extern double acos(double);
143e12c5d1SDavid du Colombier extern double asin(double);
153e12c5d1SDavid du Colombier extern double atan(double);
163e12c5d1SDavid du Colombier extern double atan2(double, double);
173e12c5d1SDavid du Colombier extern double cos(double);
183e12c5d1SDavid du Colombier extern double sin(double);
193e12c5d1SDavid du Colombier extern double tan(double);
203e12c5d1SDavid du Colombier extern double cosh(double);
213e12c5d1SDavid du Colombier extern double sinh(double);
223e12c5d1SDavid du Colombier extern double tanh(double);
233e12c5d1SDavid du Colombier extern double exp(double);
243e12c5d1SDavid du Colombier extern double frexp(double, int *);
253e12c5d1SDavid du Colombier extern double ldexp(double, int);
263e12c5d1SDavid du Colombier extern double log(double);
273e12c5d1SDavid du Colombier extern double log10(double);
283e12c5d1SDavid du Colombier extern double modf(double, double *);
293e12c5d1SDavid du Colombier extern double pow(double, double);
303e12c5d1SDavid du Colombier extern double sqrt(double);
313e12c5d1SDavid du Colombier extern double ceil(double);
323e12c5d1SDavid du Colombier extern double fabs(double);
333e12c5d1SDavid du Colombier extern double floor(double);
343e12c5d1SDavid du Colombier extern double fmod(double, double);
3559cc4ca5SDavid du Colombier extern double NaN(void);
3659cc4ca5SDavid du Colombier extern int isNaN(double);
3759cc4ca5SDavid du Colombier extern double Inf(int);
3859cc4ca5SDavid du Colombier extern int isInf(double, int);
3959cc4ca5SDavid du Colombier 
403e12c5d1SDavid du Colombier 
413e12c5d1SDavid du Colombier #ifdef __cplusplus
423e12c5d1SDavid du Colombier }
433e12c5d1SDavid du Colombier #endif
443e12c5d1SDavid du Colombier 
453e12c5d1SDavid du Colombier 
463e12c5d1SDavid du Colombier #ifdef _RESEARCH_SOURCE
473e12c5d1SDavid du Colombier /* does >> treat left operand as unsigned ? */
483e12c5d1SDavid du Colombier #define Unsigned_Shifts 1
49*3ff48bf5SDavid du Colombier #define	M_E		2.7182818284590452354	/* e */
50*3ff48bf5SDavid du Colombier #define	M_LOG2E		1.4426950408889634074	/* log 2e */
51*3ff48bf5SDavid du Colombier #define	M_LOG10E	0.43429448190325182765	/* log 10e */
52*3ff48bf5SDavid du Colombier #define	M_LN2		0.69314718055994530942	/* log e2 */
53*3ff48bf5SDavid du Colombier #define	M_LN10		2.30258509299404568402	/* log e10 */
54*3ff48bf5SDavid du Colombier #define	M_PI		3.14159265358979323846	/* pi */
55*3ff48bf5SDavid du Colombier #define	M_PI_2		1.57079632679489661923	/* pi/2 */
56*3ff48bf5SDavid du Colombier #define	M_PI_4		0.78539816339744830962	/* pi/4 */
57*3ff48bf5SDavid du Colombier #define	M_1_PI		0.31830988618379067154	/* 1/pi */
58*3ff48bf5SDavid du Colombier #define	M_2_PI		0.63661977236758134308	/* 2/pi */
59*3ff48bf5SDavid du Colombier #define	M_2_SQRTPI	1.12837916709551257390	/* 2/sqrt(pi) */
60*3ff48bf5SDavid du Colombier #define	M_SQRT2		1.41421356237309504880	/* sqrt(2) */
61*3ff48bf5SDavid du Colombier #define	M_SQRT1_2	0.70710678118654752440	/* 1/sqrt(2) */
62*3ff48bf5SDavid du Colombier 
63219b2ee8SDavid du Colombier 
64219b2ee8SDavid du Colombier extern double hypot(double, double);
653e12c5d1SDavid du Colombier #endif
663e12c5d1SDavid du Colombier #endif /* __MATH */
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