Thanks for the tip and for telling me about function trains. Also great work on Dyalog, which I had a personal license to back when I experimented a couple of

Thanks for the tip and for telling me about function trains. Also great work on Dyalog, which I had a personal license to back when I experimented a couple of years ago. I can't recall what my problem with GNU APL was but I quickly found it too painful to try and learn with.