>Does anyone know of a way to determine the number of decimal places of a numeric variable or of a way to return the correct number of decimals as a String?
>
>I can't find a function to determine how many decimals are stored in the variable.

I tried this on a wild guess:

Create Cursor zz (l l)
Append Blank
n=33.23145000
Select m.n from zz into cursor nn
Display Structure

And the exp_1 field was n(19, 8). I tried with different values for n, with different number of decimals (including trailing zeros), and the size of the field was always n(10+d+1, d), d being the number of decimals of the number n.