Expression Calculator

This project is a simple expression calculator implemented in C. It provides functionalities to convert infix expressions to postfix notation and evaluate the resulting postfix expressions.

Project Structure

The project directory contains the following files:

• cal.exe: Executable file for the expression calculator.
• expression-calculator-onefile.c: Main source file containing the implementation of the expression calculator.
• expression_calculator.c: Source file containing functions for converting infix expressions to postfix notation and evaluating postfix expressions.
• list.h: Header file containing the implementation of a linked list data structure.
• util.h: Header file containing utility functions and definitions used in the project.

Installation

To run the game, follow these steps:

Clone the repo and use and analyze the code:

git clone https://www.github.com/h4jack/cal.git ./Expressioin-Calculator

Navigate to the project directory:

cd Expressioin-Calculator

Run the game:

./cal.exe

Usage

To use the expression calculator, you can compile the source files using a C compiler and then run the executable. Here's how to use it:

• Compile the source files:

gcc expression-calculator-onefile.c expression_calculator.c -o cal.exe

• Run the executable:

./cal.exe

• You will be prompted to enter an infix expression. You can also pass the expression as command-line arguments, e.g.:

cal ./cal.exe "10*(-13+17)/1.5-17"

• The calculator will convert the infix expression to postfix notation, evaluate the postfix expression, and display the result.

Documentation

For detailed documentation of the code and its functionalities, refer to the Documentation.md file.

Expression Calculator Features

The expression calculator project provides the following features:

Infix to Postfix Conversion

• Convert infix expressions to postfix notation.
• Supports arithmetic operators: addition (+), subtraction (-), multiplication (*), division (/), modulus (%), and exponentiation (^).
• Handles parentheses to determine the order of operations.

Postfix Expression Evaluation

• Evaluate postfix expressions using a stack-based approach.
• Support for basic arithmetic operations and precedence rules.

Error Handling

• Detects and handles various types of errors in input expressions.
• Error messages are displayed for informative purposes, including:
  • Invalid expressions.
  • Division by zero.
  • Unmatched parentheses.

Command-Line Interface

• Accepts infix expressions as command-line arguments.
• Provides a user-friendly interface for entering infix expressions if no arguments are provided.
• Optional verbose mode (-v or -V) for displaying the input infix expression and the resulting postfix expression.

Modular Design

• Organized into multiple source files for clarity and maintainability:
  • expression-calculator-onefile.c: Main entry point and command-line argument processing.
  • expression_calculator.c: Core functionality for expression conversion and evaluation.
  • list.h: Implementation of a linked list data structure.
  • util.h: Utility functions and definitions used throughout the project.

Portable and Easy to Use

• Written in C for portability across different platforms.
• Simple compilation and execution process for ease of use.

Authors

• @h4jack

License

This project is licensed under the GNU GENERAL PUBLIC LICENSE

Feedback

If you have any feedback or suggestions, please feel free to create an issue or contact us.