xref: /plan9/sparc/include/ape/math.h (revision 178702b161d3fe3e021aa6cb2f305be898e56ca0)
1 #ifndef __MATH
2 #define __MATH
3 #pragma lib "/$M/lib/ape/libap.a"
4 
5 /* a HUGE_VAL appropriate for IEEE double-precision */
6 /* the correct value, 1.797693134862316e+308, causes a ken overflow */
7 #define HUGE_VAL 1.79769313486231e+308
8 
9 #ifdef __cplusplus
10 extern "C" {
11 #endif
12 
13 extern double acos(double);
14 extern double asin(double);
15 extern double atan(double);
16 extern double atan2(double, double);
17 extern double cos(double);
18 extern double hypot(double, double);
19 extern double sin(double);
20 extern double tan(double);
21 extern double cosh(double);
22 extern double sinh(double);
23 extern double tanh(double);
24 extern double exp(double);
25 extern double frexp(double, int *);
26 extern double ldexp(double, int);
27 extern double log(double);
28 extern double log10(double);
29 extern double modf(double, double *);
30 extern double pow(double, double);
31 extern double sqrt(double);
32 extern double ceil(double);
33 extern double fabs(double);
34 extern double floor(double);
35 extern double fmod(double, double);
36 extern double NaN(void);
37 extern int isNaN(double);
38 extern double Inf(int);
39 extern int isInf(double, int);
40 
41 #ifdef _RESEARCH_SOURCE
42 /* does >> treat left operand as unsigned ? */
43 #define Unsigned_Shifts 1
44 #define	M_E		2.7182818284590452354	/* e */
45 #define	M_LOG2E		1.4426950408889634074	/* log 2e */
46 #define	M_LOG10E	0.43429448190325182765	/* log 10e */
47 #define	M_LN2		0.69314718055994530942	/* log e2 */
48 #define	M_LN10		2.30258509299404568402	/* log e10 */
49 #define	M_PI		3.14159265358979323846	/* pi */
50 #define	M_PI_2		1.57079632679489661923	/* pi/2 */
51 #define	M_PI_4		0.78539816339744830962	/* pi/4 */
52 #define	M_1_PI		0.31830988618379067154	/* 1/pi */
53 #define	M_2_PI		0.63661977236758134308	/* 2/pi */
54 #define	M_2_SQRTPI	1.12837916709551257390	/* 2/sqrt(pi) */
55 #define	M_SQRT2		1.41421356237309504880	/* sqrt(2) */
56 #define	M_SQRT1_2	0.70710678118654752440	/* 1/sqrt(2) */
57 
58 extern double hypot(double, double);
59 extern double erf(double);
60 extern double erfc(double);
61 extern double j0(double);
62 extern double y0(double);
63 extern double j1(double);
64 extern double y1(double);
65 extern double jn(int, double);
66 extern double yn(int, double);
67 
68 #endif
69 
70 
71 #ifdef __cplusplus
72 }
73 #endif
74 
75 #define isnan(x) isNaN(x)
76 #define isinf(x) isInf(x, 0)
77 
78 #endif /* __MATH */
79