How to use pow() Function In PHP
The pow() function is used to calculate the power of a number. Here, we calculate the power 1/2 or 0.5 of given number.
Syntax:
pow($number, 0.5);
Example:
PHP
<?php function squareRoot($number) { return pow($number, 0.5); } $num = 30; echo "Square Root: " . squareRoot($num); ?> |
Output
Square Root: 5.4772255750517
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 (**)