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<!-- File name: sessionassignment5a.php -->
<?php session_start(); ?>
<!-- p.46 -->
<?php
$pass = $_SESSION['psw'];
if($pass != "hw5a") print "Go away.";
else
{
?>
<CENTER>
<FONT size=5 color=blue>
<?php
$a = $_POST['aVar'];
$b = $_POST['bVar'];
$c = $_POST['cVar'];
//print "a = $a<P>";
$d = ($b * $b) - (4 * $a * $c);
if($d == 0)
{
print "No real roots.";
}
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
{
print "Roots are imaginary";
}
?>
</FONT>
</CENTER>
<?php
}
?>