Home > Web Front-end > JS Tutorial > body text

How to find the square root in JavaScript

藏色散人
Release: 2023-01-04 09:35:13
Original
6798 people have browsed it

JavaScript square root method: first create an HTML sample file; then add a script tag in the body; finally, within the tag, use the "Math.sqrt()" method in javascript to find the square root of a number. .

How to find the square root in JavaScript

The operating environment of this article: windows7 system, javascript version 1.8.5, Dell G3 computer.

How to find the square root in JavaScript?

Using the square root of the sqrt() method in JavaScript

This method returns the square root of a number. If the value of the number is negative, the square root returns NaN.

Syntax

Math.sqrt( x ) ;
Copy after login

The following are the details of the parameters:

x: a number

Return value:

Returns a number sine value.

Example:

<html>
<head>
<title>JavaScript Math sqrt() Method</title>
</head>
<body>
<script type="text/javascript">
 
var value = Math.sqrt( 0.5 );
document.write("First Test Value : " + value ); 
  
var value = Math.sqrt( 81 );
document.write("<br />Second Test Value : " + value ); 
 
var value = Math.sqrt( 13 );
document.write("<br />Third Test Value : " + value ); 
 
var value = Math.sqrt( -4 );
document.write("<br />Fourth Test Value : " + value ); 
</script>
</body>
</html>
Copy after login

This will produce the following results:

First Test Value : 0.7071067811865476
Second Test Value : 9
Third Test Value : 3.605551275463989
Fourth Test Value : NaN
Copy after login

[Recommended learning: javascript advanced tutorial]

The above is the detailed content of How to find the square root in JavaScript. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template