Calculator README

1. Project Title: Simple Web Calculator

2. User Interface:

The calculator features a clean and modern user interface with a dark theme. It includes a display area for input and results.

3. Installation:

Users can access the calculator by opening the provided HTML file (1.html) in a web browser supporting HTML, CSS, and JavaScript.

4. Web Browser:

• Users should have a modern web browser (e.g., Chrome, Firefox, Safari, Edge).
• An internet connection may be needed to fetch the 'Roboto Mono' font from Google Fonts.
• JavaScript must be enabled for dynamic functionality.
• Ensure CSS3 and HTML5 support for styling and structuring.

5. Usage:

Launching the Calculator:

• Double-click on 1.html or right-click and open it with a web browser.

Calculator Interface:

• Display at the top, number buttons (0-9), and operation buttons (+, -, *, /).

Entering Numbers and Operations:

• Click number buttons to enter digits.
• Click operation buttons to perform arithmetic.

Clearing Input:

• Use "AC" to clear the entire input.
• Use "DEL" to delete the last character.

Decimal Point:

• Use "." for decimal numbers.

Calculating Results:

• Click "=" to calculate and display the result.

Error Handling:

• Invalid input triggers an alert.

Special Buttons:

• "0" spans two columns.
• "Equal" spans two rows.

Responsive Design:

• Adapts to different screen sizes.

Example Usage:

• Enter 5 + 3, click "=" for result (8).
• Enter 12 / 4, click "=" for result (3).

6. Features:

• Basic arithmetic operations.
• Numeric input (0-9) and decimal support.
• Clearing input and deleting characters.
• Result calculation with error handling.
• Special styling for "0" and "equal" buttons.
• Responsive design.

7. Contributing:

• Open to contributions and collaboration.
• License suggestions are welcome.

8. License:

• No specific license chosen yet.
• Open to suggestions for an inclusive license.

9. Troubleshooting:

• Check browser settings for JavaScript.
• Consider using a modern browser for the best experience.

10. Acknowledgments:

• Google Fonts - Roboto Mono: The calculator uses the 'Roboto Mono' font from Google Fonts, enhancing visual appeal and consistency.