Very simply square root finder
The following code is a simple square root finder. this can be used as mathematical function for
/** SAVE THIS as square.php **/
<title>Square Root Finder</title>
<style>
body {background-color:#000000; font-family:verdana; font-size:8pt;}
table, tr, td {font-family:verdana; font-size:8pt; color:#ffffff;}
input {font-family:verdana; font-size:8pt; color:#ffffff; background-color:#000000; border-left:1px solid white; border-right:1px solid white; border-top:0px; border-bottom:0px; padding:2px;}
select, option {font-family:verdana; font-size:8pt; color:#ffffff; background-color:#000000; border:0px;}
</style>
<center>
<table border=0 style=”background-color:#000000; border:1px solid #ff0000; text-align:center;” cellspacing=0 cellpadding=3>
<tr><td style=”background-color:#000000; border:1px solid #ff0000; text-align:center;”>
<form action=square_out.php method=get>
Number 1: <input type=”text” name=”num1″ style=”border-top:1px solid white; border-bottom:1px solid white;”><br>
<input type=”submit” value=”Square Root It” style=”border:1px; solid white;”>
<input type=”reset” value=”Reset” style=”border:1px; solid white;”>
</form>
</table>
</center>
/** SAVE THIS as square_out.php **/
<?php
$a = $_GET[num1];
$b = sqrt($a);
$c = $b * $b;
echo “The square root of $a is $b”;
echo “<br>” . “<br>”;
echo “Check: $b times $b”;
echo “<br>”;
echo “Answer: $c”;
?>
