Square Root in Calculator Windows

The Windows Calculator app includes a square root function that allows you to find the square root of any positive number. This guide explains how to use this feature, including step-by-step instructions, the mathematical formula, and practical examples.

How to Calculate Square Root in Windows Calculator

Calculating square roots in Windows Calculator is straightforward. Here's how to do it:

Open the Calculator app from the Start menu.
Switch to the Standard or Scientific view.
Enter the number you want to find the square root of.
Click the √ (square root) button.
The result will appear in the display.

Note

The square root function only works with positive numbers. If you enter a negative number, the calculator will display an error message.

Square Root Formula

The square root of a number x is a value that, when multiplied by itself, gives x. Mathematically, this is represented as:

Formula

√x = y, where y × y = x

For example, the square root of 16 is 4 because 4 × 4 = 16.

Practical Examples

Here are some examples of square root calculations:

√9 = 3 (since 3 × 3 = 9)
√25 = 5 (since 5 × 5 = 25)
√144 = 12 (since 12 × 12 = 144)
√2 = 1.414213562 (approximately)

For non-perfect squares, the calculator will display an approximate decimal value.

Frequently Asked Questions

Can I calculate square roots of negative numbers in Windows Calculator?

No, the square root function in Windows Calculator only works with positive numbers. For negative numbers, you would need to use complex numbers, which are beyond the scope of this calculator.

How accurate are the square root calculations in Windows Calculator?

The Windows Calculator provides accurate results for perfect squares. For non-perfect squares, it displays an approximate decimal value with up to 10 decimal places.

Can I use the square root function in the Scientific view of the Calculator?

Yes, the square root function is available in both the Standard and Scientific views of the Windows Calculator.