#ifndef __MATH#define __MATH#pragma lib "/$M/lib/ape/libap.a" /* a HUGE_VAL appropriate for IEEE double-precision *//* the correct value, 1.797693134862316e+308, causes a ken overflow */#define HUGE_VAL 1.79769313486231e+308 #ifdef __cplusplusextern "C" {#endif extern double acos(double);extern double asin(double);extern double atan(double);extern double atan2(double, double);extern double cos(double);extern double sin(double);extern double tan(double);extern double cosh(double);extern double sinh(double);extern double tanh(double);extern double exp(double);extern double frexp(double, int *);extern double ldexp(double, int);extern double log(double);extern double log10(double);extern double modf(double, double *);extern double pow(double, double);extern double sqrt(double);extern double ceil(double);extern double fabs(double);extern double floor(double);extern double fmod(double, double);extern double NaN(void);extern int isNaN(double);extern double Inf(int);extern int isInf(double, int);  #ifdef __cplusplus}#endif  #ifdef _RESEARCH_SOURCE/* does >> treat left operand as unsigned ? */#define Unsigned_Shifts 1 extern double hypot(double, double);#endif#endif /* __MATH */