Stack Calculator

A simple stack-based calculator implemented in C that converts infix expressions to postfix and evaluates them.

Features

• Converts infix expressions to postfix notation
• Evaluates postfix expressions
• Handles multi-digit numbers and basic arithmetic operators (+, -, *, /)

Usage

Compilation

Compile the program using gcc:

gcc -o stack_calculator stack_calculator.c

Runing the program

To run the program, pass an infix expression as a command-line argument (note: current version does not handle floats as inputs)

./stack_calculator "3+5*2"
# Output: 13.000000