The Array Cast

We explore the Array Languages of APL, J, k, q and offshoots. If you are Array Language curious, this is the podcast for you. Occasionally we may dive into the weeds, but most of the time we try to stay accessible to the general listener.

Last refreshed: January 14th, 2026 at 4:41 AM ⓘ

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Episodes

Rank and Leading Axis Theory

Array Cast - May 27, 2022 Show Notes [01] 00:02:00 APL logo https://aplwiki.com/wiki/APL_logo [02] 00:02:24 APL Merch On Bonfire: https://bonfire.com/store/apl-stuff/ On Redbubble: https://redbubble.com/shop/ap/111813275 Aaron Hsu's site: https://www.bonfire.com/store/arcfide/[03] 00:03:00 BQN FFI XXXXXXXXXX [04] 00:03:58 kx download https://kx.com/developers/download-licenses/ [05] 00:04:20 kx download request mailto:trial@kx.com [06] 00:05:18 Rank https://aplwiki.com/wiki/Rank Leading Axis The...

May 28, 2022•1 hr 39 min•Season 2Ep. 28

Joel Kaplan

Array Cast - May 13, 2022 Show Notes [01] 00:01:25 https://code.jsoftware.com/wiki/System/Forums [02] 00:02:10 https://www.arraycast.com/episodes/episode26-stevan-apter [03] 00:02:28 Joel Kaplan video https://www.youtube.com/watch?v=Ni0Kj3Xjk1k&t=1s [04] 00:03:10 https://www.morganstanley.com/ [05] 00:03:15 https://aplwiki.com/wiki/Arthur_Whitney [06] 00:03:25 https://www.1010data.com/ [07] 00:10:20 APL-DI https://dl.acm.org/doi/10.1145/800136.804492 [08] 00:12:10 https://en.wikipedia.org/wi...

May 14, 2022•1 hr 31 min•Season 2Ep. 27

Stevan Apter

Array Cast - April 29, 2022 Show Notes Many thanks to Adám Brudzewsky for collecting these links and Alve from the APL Farm Discord for catching the one I had left out. [01] 00:01:28 https://www.finnapl.fi/tapahtu.htm [02] 00:01:28 https://apl-germany.de/apl-germany-spring-meeting-on-5th-and-6th-of-may-2022/ [03] 00:02:15 https://nsl.com/ [04] 00:05:30 https://en.wikipedia.org/wiki/Control_Data_Institute [05] 00:05:38 https://en.wikipedia.org/wiki/National_Science_Foundation [06] 00:05:45 https:...

Apr 30, 2022•1 hr 21 min•Season 1Ep. 26

Vanessa McHale

Array Cast - April 16, 2022 Show Notes Many thanks to Adám Brudzewsky for collecting these links. Array Cast - April 15, 2022 Show Notes Many thanks to Adám Brudzewsky for collecting these links. [1] 00:01:19 J beta 904 https://code.jsoftware.com/wiki/System/Installation#J904_BETA [2] 00:02:00 ACM archives https://www.acm.org/articles/bulletins/2022/april/50-years-backfile [3] 00:03:19 BQN pad https://bqnpad.mechanize.systems/ [4] 00:03:35 tryAPL https://www.tryapl.org/ [5] 00:03:40 J playground...

Apr 16, 2022•1 hr 11 min•Season 1Ep. 25

APL Seeds 2022

Array Cast - April 1, 2022 Show Notes Many thanks to Adám Brudzewsky for collecting these links. 00:00:50 [1] APL Seeds: https://apl.wiki/APL_Seeds 00:02:31 [2] Gitte: https://apl.wiki/Gitte_Christensen 00:03:42 [3] Common Lisp: https://en.wikipedia.org/wiki/Common_Lisp 00:03:50 [4] April: https://apl.wiki/April 00:04:00 [5] Bloxl: https://bloxl.co 00:04:34 [6] Aaron: https://apl.wiki/Aaron_Hsu 00:05:20 [7] Combinator: https://en.wikipedia.org/wiki/Combinatory_logic 00:07:35 [8] Keyboards: https...

Apr 02, 2022•1 hr 3 min•Season 1Ep. 24

Andrew Sengul - The April APL Compiler

Array Cast - March 19, 2022 Show Notes Many thanks to Adám Brudzewsky and Andrew Sengul for collecting these links. [1] 1:42 J Playground https://jsoftware.github.io/j-playground/bin/html/emj.html [2] 2:18 Bob's Pi video https://www.youtube.com/watch?v=vyILnD0e2IE [3] 2:50 ADSP the podcast https://adspthepodcast.com/ [4] 3:50 LispNYC April presentation https://youtube.com/watch?v=AUEIgfj9koc [5] 5:00 April repo https://github.com/phantomics/april [6] 6:40 ELS paper - page 1, getting lexer output...

Mar 19, 2022•1 hr 21 min•Season 1Ep. 23

Josh David, APL in Industry

Array Cast - March 5, 2022 Show Notes Many thanks to Adám Brudzewsky for collecting these links. [1] 00:01:23 APL Seeds '22 conference: https://www.dyalog.com/apl-seeds-user-meetings/aplseeds22.htm [2] 00:02:00 APL Quest chat event: https://apl.wiki/APL_Quest [3] 00:02:05 APL Orchard: https://apl.wiki/APL_Orchard [4] 00:02:55 APL Seeds '21 https://www.dyalog.com/apl-seeds-user-meetings/aplseeds21.htm [5] 00:03:38 APL Seeds '22 registration https://us02web.zoom.us/webinar/register/WN_yZb-ha8sRLCJ...

Mar 05, 2022•1 hr 14 min•Season 1Ep. 22

Morten Kromberg, CTO of Dyalog Ltd.

Array Cast - February 19, 2022 Show Notes Many thanks to Bob Therriault for collecting these links. [01] 00:01:43 TryAPL.org https://tryapl.org/ [02] 00:02:20 J promotional video https://www.youtube.com/watch?v=aV936cVrN0I [03] 00:04:30 BASIC computer language https://en.wikipedia.org/wiki/BASIC [04] 00:05:04 Commodore Pet https://en.wikipedia.org/wiki/Commodore_PET [05] 00:05:50 Nascom One https://en.wikipedia.org/wiki/Nascom_(computer_kit) [06] 00:06:44 I.P. Sharpe Associates https://aplwiki.c...

Feb 19, 2022•1 hr 18 min•Season 1Ep. 21

Rodrigo Girão Serrão

Array Cast - February 5, 2022 Show Notes Many thanks to Rodrigo Girão Serrão and Bob Therriault for collecting these links. [01] 00:01:31 ArrayFire add-on for J https://github.com/jsoftware/math_arrayfire [02] 00:02:19 J thread discussing addition of dictionaries to J: http://www.jsoftware.com/pipermail/programming/2022-February/059906.html [03] 00:03:28 Vote for an APL logo: https://aplwiki.com/wiki/APL_logo [04] 00:06:16 Rodrigo's “Pydon'ts” book: https://mathspp.com/blog/pydonts [05] 00:06:22...

Feb 05, 2022•1 hr 16 min•Season 1Ep. 20

Aaron Hsu

Array Cast - January 22, 2022 Show Notes Many thanks to Adám Brudzewsky and Bob Therriault for collecting these links. 0:01:35 APL logo Voting https://aplwiki.com/wiki/APL_logo 0:02:20 Conor's Voting Video https://www.youtube.com/watch?v=Jxu4nWh1214 0:02:47 Vector Dojo https://community.kx.com/t5/KX-Technology/User-Feedback-Request-The-Vector-Dojo/td-p/11645 0:07:09 Q Basic https://en.wikipedia.org/wiki/QBasic 0:10:47 Scheme Manual https://www.gnu.org/software/mit-scheme/documentation/stable/mit...

Jan 22, 2022•1 hr 24 min•Season 1Ep. 19

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