JavaScript Math sqrt() Method
The JavaScript Math sqrt( ) Method in JavaScript is used to square the root of the number passed as a parameter to the function.
Syntax:
Math.sqrt(value)Parameters:
This method accepts a single parameter as mentioned above and described below:
- Value: which holds the number whose square root is to be calculated.
Return Value:
The square root of the number is passed as a parameter.
Example 1: Below is an example of the Math sqrt() Method.
console.log(Math.sqrt(-2));
console.log(Math.sqrt(-2.56));
Output
NaN NaN
Example 2:
console.log(Math.sqrt(4));
console.log(Math.sqrt(256));
Output
2 16
We have a complete list of Javascript Math Objects methods, to check those please go through this Javascript Math Object Complete reference article.
Supported Browsers:
- Chrome 51
- Edge 15
- Firefox 54
- Safari 10
- Opera 38
JavaScript Math sqrt() Method – FAQs
What is the Math.sqrt() method in JavaScript?
The
Math.sqrt()method returns the square root of a given number.
Are there any common use cases for Math.sqrt()?
Common use cases for
Math.sqrt()include calculating the length of the hypotenuse in a right triangle, solving quadratic equations, and performing other mathematical operations that require square roots.
What is the return type of Math.sqrt()?
The
Math.sqrt()method returns a number that is the square root of the input. If the input is negative, it returnsNaN.
Can Math.sqrt() handle zero as an input?
Yes,
Math.sqrt(0)returns 0 since the square root of zero is zero.
