10 int fpclassify(float x);
11 int isfinite(float x);
14 int isnormal(float x);
17 //float acos(float x);
18 //float asin(float x);
19 //float atan(float x);
20 //float atan2(float y, float x);
36 vector frexp(float x); // returns mantissa as _x, exponent as _y
38 float ldexp(float x, int e);
44 vector modf(float f); // fraction as _x, integer as _y
46 float scalbn(float x, int n);
49 //float fabs(float x);
50 float hypot(float x, float y);
51 //float pow(float x, float y);
52 //float sqrt(float x, float y);
56 vector lgamma(float x); // value in _x, sign in _y
57 float tgamma(float x);
59 //float ceil(float x);
60 //float floor(float x);
61 float nearbyint(float x);
62 //float rint(float x);
63 //float round(float x);
66 float fmod(float x, float y);
67 float remainder(float x, float y);
68 vector remquo(float x, float y);
70 float copysign(float x, float y);
71 float nan(string tag);
72 float nextafter(float x, float y);
73 float nexttoward(float x, float y);
75 float fdim(float x, float y);
76 float fmax(float x, float y);
77 float fmin(float x, float y);
78 float fma(float x, float y, float z);
80 int isgreater(float x, float y);
81 int isgreaterequal(float x, float y);
82 int isless(float x, float y);
83 int islessequal(float x, float y);
84 int islessgreater(float x, float y);
85 int isunordered(float x, float y);
87 #define M_E 2.7182818284590452354 /* e */
88 #define M_LOG2E 1.4426950408889634074 /* log_2 e */
89 #define M_LOG10E 0.43429448190325182765 /* log_10 e */
90 #define M_LN2 0.69314718055994530942 /* log_e 2 */
91 #define M_LN10 2.30258509299404568402 /* log_e 10 */
92 #define M_PI 3.14159265358979323846 /* pi */
93 #define M_PI_2 1.57079632679489661923 /* pi/2 */
94 #define M_PI_4 0.78539816339744830962 /* pi/4 */
95 #define M_1_PI 0.31830988618379067154 /* 1/pi */
96 #define M_2_PI 0.63661977236758134308 /* 2/pi */
97 #define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
98 #define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
99 #define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */