/***********************************************************
* Smithsonian Astromathical Observatory
* Submillimeter Receiver Laboratory
* am
*
* math_const.h                 S. Paine rev. 2017 January 30
*
* Mathematical constants
************************************************************/

#ifndef AM_MATH_CONST_H
#define AM_MATH_CONST_H

#define PI             3.141592653589793
#define TWOPI          6.283185307179586
#define ONE_ON_PI      0.3183098861837907
#define TWO_ON_PI      0.6366197723675814
#define FOUR_ON_PI     1.273239544735163
#define PI_ON_TWO      1.570796326794897
#define SQRT_PI        1.772453850905516
#define ONE_ON_SQRT_PI 0.5641895835477563
#define LOG_10         2.302585092994046

#endif /* AM_MATH_CONST_H */