r/apljk

1.6K archived posts · Dec 2011 – Sep 2026

A Programming Language and its descendants

r/apljk

Subreddit for talk about APL, J, K/Q and kdb+, and all things array languages.

Created Dec 4, 2011 · restricted

2KMembers (last snapshot)

1.6KArchived posts

Subreddit for talk about APL, J, K/Q and kdb+, and all things array languages.

Note that many links shared here are PDFs.

Posts about APL, ones about Q and about K, and J programming language.

TryAPL!

Conferences and Events News

APL, J, K/Q meetup groups and conferences

Join us on:

Freenode IRC in #jsoftware, #kq and #apl
comp.lang.apl and Dyalog's APL forum.
the J forum mailing lists
#JLang hashtag on Twitter
Iversonians and APL LinkedIn groups
kdb+/q discussion group, community wiki and code repository

Read and follow the excellent Vector, journal of the British APL Association, Steve Apter's excellent site No Stinking Loops, the APL in 2020 discussions, and Eugene McDonnell's enlightening At Play With J series of articles.

Watch the fascinating hour-long, talk-show style interview Origins of APL from 1974 with Iverson and others central to APL development, the videos recordings from the Dyalog APL conferences

APL - The Movie: Chasing Men Who Stare at Arrays being made by Catherine Lathwell, is a documentary about APL and its history.

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