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abouolia/gist:1cee66b9cf1b6ed0480a

Last active December 17, 2015 00:29
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Second Degreee Quation
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gistfile1.txt
<?php
function Seconddegreeequation( $a, $b, $c, $g=null){
if ( $g == 1 || $g == true){
$val = (-1 * $b) + sqrt(pow($b, 2) - 4*$a*$c);
}else{
$val = (-1 * $b) - sqrt(pow($b, 2) - 4*$a*$c);
}
$val2 = 2*$a;
return $val / $val2;
}
echo Seconddegreeequation(1, -3, -18, true);
?>
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