https://tutorial.dyalog.com/
Dyalog APL Tutor
Dyalog APL Tutor is an web-based training course that teaches Dyalog APL.
dyalog apltutor
https://vuink.com/post/oy0i3-d-dpbz/Blog/raymarching-in-dyalog-apl
Raymarching meets dyalog APL
NOTE: Since this commit/relase multithreading is now officially supported. Though this page was written before I added support for that so keep that i.
dyalog aplraymarchingmeets