Example Resulting value
var c1 = 4.3;
var c2 = 2.2;
var c3 = 3.8;
var x = Math.max(c1 , c2 , c3 )
var d = [c1, c2, c3];
var y = Math.max.apply(null, d);
x = 4.3
y = 4.3