Comment by gmfawcett

Cool! I didn't know that about APL, and thanks for the Dyalog 'n_tacit' link.

This sort of feels like we are two tourists, trying to help each other translate between two languages that neither of us speaks very well. :)

These two pages might help you to build an intuition about how J does verb trains. The diagrams help to explain where the x and y values are used throughout (and where they are not).

https://code.jsoftware.com/wiki/Vocabulary/hook

https://code.jsoftware.com/wiki/Vocabulary/fork

I'm starting to be able to write long-ish forks in J without mechanical help, although I usually get them wrong the first dozen times. Practice makes perfect, I guess!

I'm planning to do this year's Advent of Code puzzles (https://adventofcode.com/) in J this year... at least until I reach a problem that explodes my brain. I'm hoping that this will give me something concrete to sharpen my skills on.