Such as in

var a = 2./(period+1);

and

2*(1.-a)

Hi,

It is not ./ or .- but 2.[0] and 1.[0]. It is needed to make the compiler treat your number like a real(float) even if it is an int.

eg : 5 / 2 = 2 and 5. / 2 = 5 / 2. = 2.5

ah I see, thanks! was wondering whether it's another kind of shorthand I haven't seen before (like +=)