Q:

Write a PHP program to compute and return the square root of a given number

hamza
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2022-05-18
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Write a PHP program to compute and return the square root of a given number.

Input : 16

Php programming,
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hamza
2022-05-18
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<?php
function my_sqrt($n)
{
  $x = $n;
  $y = 1;
  while($x > $y)
  {
    $x = ($x + $y)/2;
    $y = $n/$x;
  }
  return $x;
}
print_r(my_sqrt(16)."\n");
print_r(my_sqrt(14)."\n");
?>

Sample Output:

4                                                           
3.7416573867739

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