Mastering Dyalog APL

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1. 7thaccountJan 2024
   For APL I started with the Mastering Dyalog APL book they have for free on their website which is good, but long. Someone recommended an ancient book I found on Amazon called "APL An Interactive Approach 2nd Ed." I think by Gilman and Rose that is very easy to follow. There are plenty of tutorials online now too (a lot more than when I started looking 8 years ago).

   For J, I read a good bit of "Numerical Programming in J" or something along those lines. I've found J to be more difficult than APL or K to pick up tbh. The tacit trains is just a bit too hard for me to follow.

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2. dybberMar 2023
   https://xpqz.github.io/learnapl/intro.html - is a good place to start. After that consider “Mastering Dyalog APL” it’s a freely available book by Dyalog
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3. beagle3May 2022
   I learned APL on a mainframe over 30 years ago, which is not something I'd recommend (also, you're unlikely to have access to one), but rumor says Dyalog has good tutorials, such as "Mastering Dyalog APL", see links here https://www.dyalog.com/getting-started.htm

   As for K, Stefan Kruger's text seems like a good introduction https://xpqz.github.io/kbook/Introduction.html

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4. gmfawcettDec 2019
   Hey, small world! :) I hope that you're enjoying it, too.

   Mostly I've just been using the articles and resources on the J Wiki. But I found it useful to skim through the free book, "Mastering Dyalog APL" [1] -- of course the languages aren't identical, but they're similar enough that many of the APL examples were instructive.

   I also have the NuVoc page on speed-dial. :) I have definitely not memorized all of those crazy verbs yet!

   [1] https://www.dyalog.com/uploads/documents/MasteringDyalogAPL....

   [2] https://code.jsoftware.com/wiki/NuVoc

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5. jodrellblankJul 2019
   For anyone looking to get into APL, Adám at Dyalog posts a lot of answers on the CodeGolf and Programming Puzzles StackExchange site often with expanded/explained code, and he hangs in the "APL Orchard" chatroom on SO. His profile says "always excited to [talk about] APL" and that seems to be genuine. - https://codegolf.meta.stackexchange.com/users/43319/ad%C3%A1...

   The most public APL dialect using the classic symbols (not J/K/Q/etc) seems to be Dyalog APL - they offer one of their older versions 14 free for non-commercial use (Windows), and they offer their current version 17 free for non-commercial use if you give them your full details (maybe Linux as well?). There is a book "Mastering Dyalog APL" by Bernard Legrand from ~2008 which is available as a PDF with companion files from: https://www.dyalog.com/mastering-dyalog-apl.htm although they have added to the language since that book was released.

   There are other APL interpreters - GNU APL, NARS2000, ngn/apl, dzaima/apl (Java/Android) in various states of development and license conditions, and the developers of the last two are also sometimes in the APL Orchard chatroom on StackExchange.

   Online there's https://tryapl.org/ run by Dyalog, and https://tio.run/# which has three APL interpreters.

   The classic 1970s book "APL\360 an Interactive Approach" by Gilman and Rose is online as a PDF here: http://www.softwarepreservation.org/projects/apl/Books/ with other books as well. That's before the {} syntax for anonymous functions was added to the language, and other developments.

   Videos:

   Jay Foad while he was at Dyalog, talking through some Advent of Code puzzles with APL: https://dyalog.tv/Webinar/?v=Q_vgSN6rza0 (might want to skip the introduction of explaining the Advent of Code puzzle format).

   Aaron Hsu with Dhaval Dalal and Morten Kromberg, talking through some problems using APL https://www.youtube.com/watch?v=Gsj_7tFtODk

   And anything that you get from YouTube searching for Aaron Hsu, he has several talks / presentations from high level ideas to working with trees represented using arrays.

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6. JtsummersMar 2018
   Due to some recent discussions here and on Reddit I decided to take a look at APL again. I'd previously toyed with it several years ago, and J a couple times before that. I started on the Mastering Dyalog APL book [0] this week and it's an excellent tutorial so far. Came across this site while trying to show APL to some colleagues. It's been posted here several times before [1], decent amount of discussion in 2015.

   [0] http://www.dyalog.com/mastering-dyalog-apl.htm

   [1] https://news.ycombinator.com/from?site=tryapl.org

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