Introduction
Calculators play a crucial role in performing mathematical operations swiftly and accurately. In this article, we’ll provide a comprehensive guide on creating a calculator using HTML and JavaScript. This calculator will specifically handle subtraction and percentage calculations.
How to Use
Using the calculator is simple. Enter the values in the provided input fields, choose the operation (subtract or calculate the percentage), and click the “Calculate” button. The result will be displayed instantly.
Formula
The subtraction formula is straightforward: result=number1−number2. For percentage calculations, the formula is result=percentage×number100.
Example
Let’s walk through an example. Suppose you want to subtract 25 from 50. Enter 50 in the first input field, 25 in the second input field, choose the subtraction operation, and click “Calculate.” The result will be 25, indicating that 50 – 25 equals 25.
Now, let’s calculate 20% of 150. Enter 150 in the input field, 20 in the percentage field, choose the percentage operation, and click “Calculate.” The result will be 30, indicating that 20% of 150 is 30.
FAQ’s
Q: Can I perform both subtraction and percentage calculations simultaneously?
A: No, the calculator is designed to handle either subtraction or percentage calculations at a time.
Q: Is the calculator suitable for complex mathematical operations?
A: No, this calculator focuses on basic subtraction and percentage calculations. For advanced calculations, consider using specialized tools.
Q: Can I use decimal numbers in the input fields?
A: Yes, the calculator supports decimal numbers for more precise calculations.
Conclusion
Creating a subtraction and percentage calculator using HTML and JavaScript is a handy way to perform quick calculations without relying on external tools. The provided formula and example demonstrate how easy it is to use this calculator for everyday mathematical needs.