🧮 Calculator App (Tkinter)

A modern, responsive calculator built using Python's Tkinter GUI library.
This app mimics the basic functionality and design of a standard calculator — featuring arithmetic operations, percentage handling, sign switching, and a clean user interface.

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✨ Features

• 🧾 Basic operations: Addition, subtraction, multiplication, division
• 💯 Percentage and sign toggle (±) support
• 🎨 Modern UI: Custom colors and typography using Inter font
• ⚡ Keyboard-like layout with grid-based responsive design
• 🚫 Error handling for invalid expressions and division by zero

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🖥️ Preview

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▶️ How to Run

Make sure Python is installed on your system (version 3.7+ recommended).

python calculator.py

The calculator window should open immediately.

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🧩 Tech Stack

• Language: Python
• GUI Library: Tkinter (built-in)

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⚖️ License

This project is licensed under the MIT License.

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🧑‍💻 Author

Subhanki Sahoo