1 #define M_E 2.7182818284590452354
2 #define M_LOG2E 1.4426950408889634074
3 #define M_LOG10E 0.43429448190325182765
4 #define M_LN2 0.69314718055994530942
5 #define M_LN10 2.30258509299404568402
6 #define M_PI 3.14159265358979323846
7 #define M_PI_2 1.57079632679489661923
8 #define M_PI_4 0.78539816339744830962
9 #define M_1_PI 0.31830988618379067154
10 #define M_2_PI 0.63661977236758134308
11 #define M_2_SQRTPI 1.12837916709551257390
12 #define M_SQRT2 1.41421356237309504880
13 #define M_SQRT1_2 0.70710678118654752440
1.8.6