Go to the documentation of this file. 39 #ifndef WCSLIB_WCSMATH 40 #define WCSLIB_WCSMATH 62 #define PI 3.141592653589793238462643 65 #define SQRT2 1.4142135623730950488 66 #define SQRT2INV 1.0/SQRT2 72 #define UNDEFINED 987654321.0e99 73 #define undefined(value) (value == UNDEFINED)