| 1 | #ifndef __ZMATH_H |
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| 2 | #define __ZMATH_H |
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| 3 | |
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| 4 | #include <errno.h> |
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| 5 | |
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| 6 | #define NUM 3 |
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| 7 | #define NAN 2 |
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| 8 | #define INF 1 |
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| 9 | |
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| 10 | #define __PI 3.14159265358979323846 |
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| 11 | #define __SQRT_HALF 0.70710678118654752440 |
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| 12 | #define __PI_OVER_TWO 1.57079632679489661923132 |
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| 13 | |
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| 14 | extern double BIGX; |
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| 15 | extern double SMALLX; |
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| 16 | |
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| 17 | typedef const union |
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| 18 | { |
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| 19 | long l[2]; |
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| 20 | double d; |
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| 21 | } udouble; |
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| 22 | |
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| 23 | typedef const union |
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| 24 | { |
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| 25 | long l; |
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| 26 | float f; |
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| 27 | } ufloat; |
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| 28 | |
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| 29 | extern double BIGX; |
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| 30 | extern double SMALLX; |
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| 31 | |
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| 32 | extern udouble z_infinity; |
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| 33 | extern udouble z_notanum; |
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| 34 | extern double z_rooteps; |
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| 35 | |
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| 36 | extern ufloat z_infinity_f; |
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| 37 | extern ufloat z_notanum_f; |
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| 38 | extern float z_rooteps_f; |
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| 39 | |
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| 40 | /* Core math routines. */ |
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| 41 | |
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| 42 | int numtest (double); |
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| 43 | int numtestf (float); |
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| 44 | double logarithm (double, int); |
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| 45 | float logarithmf (float, int); |
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| 46 | double sine (double, int); |
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| 47 | float sinef (float, int); |
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| 48 | double asine (double, int); |
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| 49 | float asinef (float, int); |
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| 50 | double atangent (double, double, double, int); |
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| 51 | float atangentf (float, float, float, int); |
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| 52 | double sineh (double, int); |
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| 53 | float sinehf (float, int); |
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| 54 | |
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| 55 | #endif /* no __ZMATH_H */ |
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