Calculator

Here are some user guidelines for the calculator:

1. To use this calculator, simply click on the numbers and operators you wish to use.

2. The calculator allows you to perform basic arithmetic operations such as addition, subtraction, multiplication, and division.

3. You can clear the current calculation by clicking on the "C" button.

4. You can also delete the last digit entered by clicking on the "DEL" button.

5. To perform a calculation, click on the "=" button.

6. If you enter an invalid equation or try to divide by zero, the calculator will display an error message.

7. The calculator supports both keyboard input and mouse input, so you can use whichever method you prefer.

8. To use the keyboard, simply type in the numbers and operators as you would on a physical calculator.

9. If you need help using the calculator, you can refer to these user guidelines or contact the website administrator for assistance.

10. Enjoy using the calculator and feel free to explore its features!