Square/square root table

This will return a square root table. Square roots are rounded to 3 decimals.

<?php
/**
 * GetSquareRoots()
 * Return Square/Square root table
 * @param mixed $start
 * @param mixed $end
 * @return string $Sqrt
 */
function GetSquareRoots( $start, $end )
{
	// Define variable holding table
	$Sqrt = '<table><tr>
    <th style="width: 150px; text-align:left;">Number</th>
    <th style="width: 150px; text-align:left;">Square root</th>
    <th style="width: 150px; text-align:left;">Square</th>
    </tr>
    ';

	// As long $x <= $end add a new row containing a cell for square root and root
	for ( $x = $start; $x <= $end; $x++ ) $Sqrt .= '<tr><td>' . $x . '</td><td>&#8730;' . $x . ' = ' . round( sqrt( $x ), 3 ) .
			'</td><td>' . ( $x * $x ) . '</td></tr>';
	$Sqrt .= '</table>';

	// Return the table
	return $Sqrt;
}

// Create table 1 - 15
echo GetSquareRoots( 1, 15 );
?>

This will output something like:

• 

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