<!---
        Assignment 4(B)
        Corey Gray
        Due March 3, 2014
        Goal:  To modify the calculator and add the modulo and power functions
-->

<?php session_start();	?>
<font color = blue size = 4>
<?php
	$op = $_POST['op'];
	$num1 = $_SESSION['v1'];
	$num2 = $_SESSION['v2'];
	print "The num1 is $num1<br>";
	print "The num2 is $num2<br>";

	if($op == "add")
	{
		$ans = $num1 + $num2;
		print "$num1 + $num2 = $ans";
	}
	else if($op == "sub")
        {
                $ans = $num1 - $num2;
                print "$num1 - $num2 = $ans";
        }
	else if($op == "mul")
        {
                $ans = $num1 * $num2;
                print "$num1 * $num2 = $ans";
        }
	else if($op == "div")
        {
                $ans = $num1 / $num2;
                print "$num1 / $num2 = $ans";
        }
	else if($op == "mod")
	{
		$ans = $num1 % $num2;
		print "$num1 % $num2 = $ans";
	}
	else if($op == "pow")
	{
		$ans = pow((float)$num1, (float)$num2);
		print "$num1^$num2 = $ans";
	}
?>
</font>