RE: https://mastodon.social/@ngate/115436748596975224
This is not a bad tutorial. It's written by someone who is not very familiar with the language, so the author misses some obvious simplifications, but overall not bad. Apparently they're also using my GNU APL mode for Emacs, which was fun to see.
Obviously I'm usually promoting my own APL dialect, but knowledge of standard APL helps when working with other dialects.