<?php   session_start();    ?>

<!-- File name: assignment5a.php  -->

<?php  

        $pass = $_SESSION['psw'];
	if($pass != "hw5a")
		print "Go away.";
        else
        {
?>



<FONT size=5 color=blue>
<?php

        $a = $_POST['aVar'];
        $b = $_POST['bVar'];
        $c = $_POST['cVar'];

        $d = ($b * $b) - (4 * $a * $c);

        if($d == 0)
        {
		$x = ((-$b) / (2 * $a));
                print "Root: x = $x";
        }

        else if ($d > 0)
        {
                $x1 = (-$b + sqrt($d)) / (2 * $a);
                $x2 = (-$b - sqrt($d)) / (2 * $a);

                print "First Root: x = $x1 <P>  Second Root: x = $x2";
        }
        else if ($d < 0)
        {
                print "There are no real roots";
        }

?>

<?php
        }
?>