Errr... what's the word for printing the top of the stack? Or some way of getting a result back out?
So, to compute and print 1001, do:
7 11 13 * * .
Also useful: .s non-destructively prints the stack (as does .S ; this forth does appear to be case-insensitive)
2 2 + .
For a full list of words enter 'words'eg:
10 . <return>
10
try: 2 3 + .