This repository contains two Reverse Polish Notation (RPN) calculators implemented in C: one for boolean algebra expressions and the other for arithmetic expressions.

The RPN Boolean Calculator evaluates Boolean expressions in postfix notation. It supports input values TRUE and FALSE, along with the operators AND (&), OR (|), and NOT (!). The calculator handles both uppercase and lowercase input values and accepts 0 for FALSE and 1 for TRUE. Calculations occur whenever a newline character is read, and the program exits on the end-of-file character (Ctrl+d). In case of errors, a generic error message is displayed. The output is either TRUE or FALSE, presented in capital letters.

• boolcalc.l: Lexical analyzer (Flex) source file.
• boolcalc.y: Parser (Bison) source file.
• boolcalc.tab.h: Header file generated by Bison.
• boolcalc.tab.c: Parser file generated by Bison.
• lex.yy.c: Lexical analyzer file generated by Flex.
• boolcalc: Executable file generated after compiling the code.

Follow the instructions provided in the README file specific to the RPN Boolean Calculator to compile and run the program.

The RPN Calculator evaluates arithmetic expressions in postfix notation. It supports the following arithmetic operations: addition (+), subtraction (-), multiplication (*), division (/), power (^), squar root (sqrt), and negative (n). Calculations occur whenever a newline character is read, and the program exits on the end-of-file character (Ctrl+d). In case of errors, the program displays a generic error message. The output is the result of the evaluated expression.

• rpcalc.l: Lexical analyzer (Flex) source file.
• rpcalc.y: Parser (Bison) source file.
• rpcalc.tab.h: Header file generated by Bison.
• rpcalc.tab.c: Parser file generated by Bison.
• lex.yy.c: Lexical analyzer file generated by Flex.
• rpcalc: Executable file generated after compiling the code.

Follow the instructions provided in the README file specific to the RPN Calculator to compile and run the program.

• Arad Soutehkeshan