<?php function GrayML ($TL,$Ta,$Tb) {$TC=135.723831+-1.572288*$TL+-0.152776*$Ta+-0.152776*$Tb+0.002765*pow($TL,2)+-0.0058*$TL*$Ta+-0.0058*$TL*$Tb+0.001461*pow($Ta,2)+0.001461*$Ta*$Tb+0.001461*pow($Tb,2);
$TM=156.047656+-2.561263*$TL+0.420465*$Ta+0.420465*$Tb+0.010577*pow($TL,2)+-0.001127*$TL*$Ta+-0.001127*$TL*$Tb+-0.003243*pow($Ta,2)+-0.003243*$Ta*$Tb+-0.003243*pow($Tb,2);
$TY=153.047656+-2.561263*$TL+0.420465*$Ta+0.420465*$Tb+0.010577*pow($TL,2)+-0.001127*$TL*$Ta+-0.001127*$TL*$Tb+-0.003243*pow($Ta,2)+-0.003243*$Ta*$Tb+-0.003243*pow($Tb,2);
return [$TC, $TM, $TY];}
?>