#define NUMBER 257
#define SIN 258
#define COS 259
#define TAN 260
#define ASIN 261
#define ACOS 262
#define ATAN 263
#define SINH 264
#define COSH 265
#define TANH 266
#define ASINH 267
#define ACOSH 268
#define ATANH 269
#define SQRT 270
#define MOD 271
#define LN 272
#define LOG 273
#define PI 274
#define UMINUS 275
typedef union
{
   int    ival;
   double dval;
} YYSTYPE;
extern YYSTYPE yylval;