HP50g forums / community is there such alive?

[Vtile]

Thank you Claudio, that kind of information just is not "easily" available for new user of HPs RPL line of products. Hopefully google will pict this thread.

I have again another question, is there a way to append arroys [..] inside UserRPL programs automaticly (=without dumping the arroy to stack and remaking it with new values)? Ie. for collecting values in loop structures to be used later. The arroy will not be declared at the beginning to final size. I know how to do it with lists {..} (+ command ), but seem to not find a way (atleast for now) to do it with arroys. {[a b] [c d] ... [n m]} atleast might work with some post processing.
Also is there a "null" value that can be used in arroy as other datasets like NOVAL is used in some menu related stuff.