#ifndef _math_oph
#define _math_oph

#define SQHF		.70710678118654752440 
#define RLN2		1.4426950408889634 
#define RLN10		0.4342944819032518 
#define RLG2		0.3010299956639812 
#define RPI		0.3183098861837907 
#define PIB2		1.5707963267948966 
#define DRPI		0.6366197723675813 
#define SQT3		1.7320508075688773 
#define MSQ3		0.2679491924311227 
#define RADTODEG	57.29577951308232 
#define DEGTORAD	0.017453292519943296 

#define MOD(a,b)	(a-(a/b)*b)

#endif