#ifndef MATH_H

#define MATH_H 1

#define HUGE_VAL 9e8
#define PI 3.1415926

extern double acos();
extern double asin();
extern double atan();
extern double atan2();
extern double ceil();
extern double cos();
extern double cosh();
extern double exp();
extern double fabs();
extern double floor();
extern double fmod();
extern double frexp();
extern double ldexp();
extern double log();
extern double log10();
extern double modf();
extern double pow();
extern double sin();
extern double sinh();
extern double sqrt();
extern double tan();
extern double tanh();

#endif