function helice($l, $n, $d, $h)
{
return sqrt(powr($l) + powr($n) + powr($d) + powr($h));
}
/** *************************************************
Function makeBcast will take in the ID array
and create the broadcast ID for the given host IP
************************************************* **/
function makeBcast($mask, $idArr)
{
$bcast = array(0, 0, 0, 0);
$oct = (int) ($mask / 8);
for ($i = 0; $i < $oct; $i++) {
$bcast[$i] = $idArr[$i];
}
$inc = powr(2, 8 - $mask % 8);
$bcast[$oct] = $idArr[$oct] + $inc - 1;
for ($j = $oct + 1; $j < 4; $j++) {
$bcast[$j] = 255;
}
return $bcast;
}
