🧮 Python Calculator

A simple command-line calculator built with Python.

This project supports basic arithmetic operations and includes input validation, error handling, and the ability to continue calculations using the previous result.

✨ Features

• ➕ Addition
• ➖ Subtraction
• ✖️ Multiplication
• ➗ Division
• 🔢 Decimal number support
• 🛡️ Input validation
• ⚠️ Division-by-zero protection
• 🔄 Continue calculations using the previous result
• 🧹 Console clearing between sessions
• ❌ Invalid input handling

🛠️ Built With

• Python 3
• Built-in os module

📂 Project Structure

python-calculator/
│
└── main.py

🚀 How to Run

Make sure Python 3 is installed on your system.

Clone the repository:

git clone https://github.com/Ramtinexe/python-calculator.git

Navigate to the project folder:

cd python-calculator

Run the program:

python main.py

🎮 How It Works

1. Enter the first number.

2. Choose an operation:

   • + Addition
   • - Subtraction
   • * Multiplication
   • / Division

3. Enter the second number.

4. The calculator displays the result.

5. Choose whether to:

   • Continue calculating with the previous result.
   • Start a new calculation.

📚 What I Learned

This project helped me practice several Python concepts:

• Functions
• Return values
• Dictionaries
• Dictionary of functions
• while loops
• Nested loops
• if / elif / else
• break and continue
• try / except
• Input validation
• Error handling
• Basic file/system operations with os

👤 Author

Ramtin

GitHub: https://github.com/Ramtinexe

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