A basic Python calculator that performs addition, subtraction, multiplication, and division.
- Supports basic operations: Addition, Subtraction, Multiplication, Division
- User input validation: handles invalid inputs (e.g., non‑numbers, division by zero)
- Clear / Reset option to reset the display
- Responsive design (if web app) so it works well across desktop and mobile devices
- Clean & intuitive user interface
- Python 3.x