How to use sqrt() Function In PHP
The sqrt() function is used to calculate the square root of a number.
Syntax:
float sqrt( $value )
Example:
PHP
<?php function squareRoot( $number ) { return sqrt( $number ); } $num = 36; echo "Square Root: " . squareRoot( $num ); ?> |
Output
Square Root: 6
PHP Program to Find Square Root of a Number
Given a Number, the task is to find the Square Root of Number in PHP.
Examples:
Input: 15
Output: 5
Input: 30
Output: 5.477
There are three methods to find the square root of the given number, these are:
Table of Content
- Using sqrt() Function
- Using pow() Function
- Using Exponentiation Operator (**)