#ifndef __PARSER_H__
#define __PARSER_H__
+/* global variables */
+
+extern double answer;
+
/* function type */
typedef enum {
Add, Sub,
Mul, Div, Mod,
Pow, Sqr,
- Cos, Sin, Atn,
+ Cos, Sin, Atan,
Log, Exp,
- Qui, Hel
+ Store, Recall, Disp,
+ Quit, Help,
+ Ans, E, Pi,
+ Equal, Diff, Ge, Le, Gt, Lt
} func_t;
/* keyword type */