Stochastic

["kaveman_aus" <kavemanperth@xxxx>]

I have been writing a simple exploration for the stochastic and notice
that there seems to be different ways of writing it into the search.
The help screen gives me StochD() and StochK(). But all the examples I
have seen use somehting like this
stochKworkaround = Stoch(14);
stochDworkaround = EMA( Stoch(14), 3);

This Stoch() does not appear in the help in my version of AB.

Which one is the better to use?
Graham