Overview
The Basic Calculator is a fast, responsive, and easy-to-use tool for performing simple arithmetic operations. It is designed to mimic the classic IBM numpad calculator, providing a familiar interface for quick calculations. This calculator supports addition, subtraction, multiplication, and division, and is optimized for both desktop and mobile devices.
How to Use
- Entering Numbers: Click the number buttons or use your keyboard to enter digits. The display will update as you type.
- Decimal Point: Use the . button to enter decimal numbers.
- Operations: Click the +, −, ×, or ÷ buttons to perform addition, subtraction, multiplication, or division. You can also use your keyboard's +, -, *, or / keys.
- Equals: Click the = button or press Enter to calculate the result.
- Clear: Click C to reset the calculator to zero.
Keyboard Shortcuts
- 0-9: Enter digits
- .: Decimal point
- +, -, *, /: Operations
- Enter or =: Calculate
- Escape: Clear all
Features
- Responsive design for all devices
- Keyboard and mouse/touch support
- Prevents invalid operations (e.g., division by zero)
- Visually appealing, modern interface using Bootstrap
Tips
- Use the calculator for quick math, budgeting, or checking homework.
- On mobile, tap the buttons for fast input.
- If you make a mistake, just press C to start over.
About
This calculator is built with HTML5, CSS3, JavaScript, and Bootstrap 5. It is designed for speed, accessibility, and ease of use. No data is stored or sent anywhere; all calculations are performed locally in your browser.