#ifndef _Calculator_h_INCLUDED_ #define _Calculator_h_INCLUDED_ typedef struct _Calculator * Calculator; #define CALCULATOR_DEFAULT_DEGREE 360 Calculator Calculator_Create(int degree_number); Calculator Calculator_Destroy(Calculator cal); double Calculator_GetSin(Calculator cal, int degree); double Calculator_GetCos(Calculator cal, int degree); #endif /*****************************************************************************/ /* End of Program */ /*****************************************************************************/