PHP sqrt() function

by Online Tutorials Library July 22, 2022

PHP sqrt() function

The sqrt() is mathematical function, used to calculate the square root of any number.

Syntax:

Parameter	Description	Required /Optional
number	Specifies a number	Required

PHP math Sqrt function

Example1

 <?php $num=625; echo “Your number is : $num”.'<br>’; echo “By using sqrt function Your number is : “.sqrt ($num); ?> 

Output:

Your number is : 625 By Using sqrt function Your number is : 25

Example2

 <?php $num=(-9); echo “Your number is : $num”.'<br>’; echo “By using sqrt function Your number is : “.sqrt ($num); ?> 

Output:

Your number is : -9 By using sqrt function Your number is : NAN

Note: The square root of argument or the special value NAN for negative numbers.

Example 3

 <?php $num=(0.09); echo “Your number is : $num”.'<br>’; echo “By using sqrt function Your number is : “.sqrt ($num); ?> 

Output:

Your number is : 0.09 By using sqrt function Your number is : 0.3

Example 4

 <?php $a=3;  // One side $b=4;  // One side $h=sqrt(pow($a,2)+pow($b,2)); echo “Your number is : $a and $b”.'<br>’; echo “By using sqrt function (pow($a,2)+pow($b,2)) Your number is : “.$h; ?> 

Output:

Your number is : 3 and 4 By using sqrt function (pow(3,2)+pow(4,2)) Your number is : 5

Next TopicPHP Math

PHP sqrt() function

PHP sqrt() function

Syntax:

Example1

Example2

Note: The square root of argument or the special value NAN for negative numbers.

Example 3

Example 4

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