The APL Vade Mecum

"These cards were kind of a novelty item, something Iverson could hand out at conferences. He created these woodblocks that had the entire #APL language specification on it. You could, in theory, refer to these unique business cards to understand how APL works."

https://www.uvic.ca/library/about-us/news-stories/news/voices-uvic-libraries/durno-historic-computing-lab.php
Thanks @jdd

jlearn: Machine Learning Library in J

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Lobsters

In the Year 2000:

APL sees a resurgence in popularity due to LLMs preferring it for token density.

#AI #programming #Humor #LLM #APL

For the first time, the D'Hondt method is being used to apportion seats in today's Welsh elections. In his timely blog post – https://www.dyalog.com/blog/2026/05/dhondt-apportionment-made-easy-with-apl – Asher explores an #APL implementation of this proportional apportionment technique.

#Dyalog #dhondt #Senedd

Oh, CF Montreal scored just before 1st half ended.

Crisis averted.

CF Montreal 2-0 Calgary Blizzard

#MLS #APL #soccer

RE: https://atomicpoet.org/objects/73c2d4a1-62bd-4870-8fe8-463a5b9c2c8e

Peeking over at the preliminary Canadian Championships between CF Montréal and Calgary Blizzard.

Everyone is afraid CF Montréal will do one worse by losing the an Alberta Premier League team, which is the 3rd tier in the Canadian #soccer pyramid.

Last night, Toronto FC lost to Atlético Ottawa, and that was humiliating enough.

#MLS #APL

https://en.cfmontreal.com/competitions/canadian-championship-x9569/2026/matches/mtlvsbli-05-06-2026/

MTLvsBLI 05-06-2026 | FC Montreal

Site officiel du CF Montréal, anciennement l'Impact de Montréal, club canadien de soccer évoluant en Major League Soccer (MLS) depuis 2012 et basé à Montréal, au Québec.

CF Montréal
A little comparison between R and Kap

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Lobsters

#APLQuest 2016-01: Write a function that takes a numeric array as its right argument and returns the mean (average) of the array (see https://apl.quest/2016/1/ to test your solution and view ours).

#APL #Statistics #MeanAverage

APL Quest 2016-1: Statistics - Mean

Write a function that takes a numeric array as its right argument and returns the mean (average) of the array.

I had a bit of fun, and wrote a blog post where I comment on another blog post that compares R and pandas for some common calculations. I do the same in Kap, to show the differences.

Obviously Kap is less easy to understand without any prior knowledge. But once you know it, it's quite efficient.

https://blog.dhsdevelopments.com/a-little-comparison-between-r-and-kap

#kap #apl #programming

A little comparison between R and Kap

Some time ago, I read this article: Why pandas feels clunky when coming from R. In it, the author explains why they feel that R is a much...

Elias Mårtenson
A Personal History of APL (1982) - Michael S. Montalbano https://lobste.rs/s/ygusar #apl #historical
https://ed-thelen.org/comp-hist/APL-hist.html
A Personal History of APL (1982) - Michael S. Montalbano

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Lobsters