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Perl | sqrt() Function

  • Last Updated : 07 May, 2019

Many times it happens that while solving mathematical expressions we require to calculate the square root of a number.
To solve this issue, like other programming language Perl provides us with a built-in function sqrt() which can be used to calculate the square root of a number.

Syntax: sqrt value

Returns: square root of the value passed

Note: sqrt() can only calculate square root of positive values.
 
Example 1:




#!/usr/bin/perl
  
# Calculating square root using sqrt()
$square_root = sqrt(64);
  
# Printing the result
print "Squareroot of 64 is: $square_root";
Output:
Squareroot of 64 is: 8

Example 2:




#!/usr/bin/perl
  
# Calculating square root using sqrt()
$square_root = sqrt(16);
  
# Printing the result
print "Squareroot of 16 is: $square_root";
Output:
Squareroot of 16 is: 4
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