ArrayCast

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**ArrayCast**

ArrayCast is a podcast that explores the world of array programming languages including APL, J, BQN, K, Q, Uiua and more!

Latest Episodes:

Aaron Hsu Jan 22, 2022

Show notes

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-scheme-user.pdf

Chez Scheme https://www.scheme.com/

0:14:27 Indiana University C.S. Department https://cs.indiana.edu/

0:15:00 Kent Dybvig Dissertation http://www.cs.unc.edu/xcms/wpfiles/dissertations/dybvig.pdf

0:15:26 Schneider, Fred B. On concurrent programming. 1997. Springer-Veriag: New York. ISBN 0-387-94942-9 https://link.springer.com/book/10.1007/978-1-4612-1830-2

0:16:20 Game of Life Scholes https://apl.wiki/John_Scholes'_Conway's_Game_of_Life

0:17:00 APLX https://apl.wiki/APLX

0:20:00 K https://k.miraheze.org

0:21:37 Arthur Whitney https://apl.wiki/Arthur_Whitney

0:22:06 J incunabulum https://code.jsoftware.com/wiki/Essays/Incunabulum

0:22:57 Arthur Whitney Comparing APL and Lisp - https://kparc.com/lisp.txt

0:27:50 Bullet Journalling https://bulletjournal.com/pages/learn

0:30:00 Chinese Language Forms https://en.wikipedia.org/wiki/List_of_Chinese_classifiers

0:36:15 Notation as a Tool of Thought https://www.eecg.utoronto.ca/~jzhu/csc326/readings/iverson.pdf

0:39:33 PL Wonks Co Dfns Talk https://www.youtube.com/watch?v=9NR3sz4D4zc

0:44:21 Reversible Computing Roshan P. James https://scholar.google.com/citations?user=0sGAm4sAAAAJ&hl=en

Henry Rich presents J903 Jan 08, 2022

Show notes

Array Cast - January 8, 2022 Show Notes

Many thanks to Rodrigo Girão Serrão and Bob Therriault for collecting these links.

00:01:56 Episode 17 of The Array Cast, the dyadic hook https://www.arraycast.com/episodes/episode17-tacit4-the-dyadic-hook

00:02:25 FnConf 2022, the conference Aaron Hsu is attending https://www.functionalconf.com/

00:02:28 Aaron Hsu video
https://www.youtube.com/watch?v=uEEJDq6cNTs

00:03:39 Episode 6 of The Array Cast with Henry Rich https://www.arraycast.com/episodes/episode-06-henry-richs-deep-dive-into-j

00:05:07 J 9.03 release notes https://code.jsoftware.com/wiki/System/ReleaseNotes/J903

00:06:20 Invisible Modifiers https://code.jsoftware.com/wiki/Vocabulary/fork#invisiblemodifiers

00:07:20 Fork https://code.jsoftware.com/wiki/Vocabulary/fork

00:08:10 Modifier https://code.jsoftware.com/wiki/Vocabulary/Modifiers

00:10:24 ArrayCast Tacit Episodes
https://www.arraycast.com/episodes/episode-09-tacit-programming
https://www.arraycast.com/episodes/episode11-why-tacit
https://www.arraycast.com/episodes/episode15-tacit-3-and-other-topics
https://www.arraycast.com/episodes/episode17-tacit4-the-dyadic-hook

00:12:43 ButIfNull https://www.jsoftware.com/help/jforc/empty_operands.htm#_Toc191734378

00:15:20 Higher Order Functions https://en.wikipedia.org/wiki/Higher-order_function

00:25:30 The J Parser https://www.jsoftware.com/help/jforc/parsing_and_execution_i.htm#_Toc191734584

Tacit #4 - the dyadic hook Dec 25, 2021

Show notes

Array Cast - December 25, 2021 Show Notes

Many thanks to Adám Brudzewsky for collecting these links

00:01:30 Ken Iverson: https://apl.wiki/Ken_Iverson

00:01:30 J903: https://code.jsoftware.com/wiki/System/Installation/J903

00:02:21 APL logo: https://apl.wiki/APL_logo

00:02:51 I.P. Sharp: https://apl.wiki/I.P._Sharp_Associates

00:04:12 APL⋆PLUS: https://apl.wiki/APL*PLUS

00:04:12 Tacit programming: https://apl.wiki/Tacit_programming

00:04:12 Hook: https://apl.wiki/Hook

00:05:15 Hook in J: https://code.jsoftware.com/wiki/Vocabulary/hook

00:07:36 BQN: https://apl.wiki/BQN

00:07:36 Fork: https://apl.wiki/Tacit_programming#3-trains

00:08:20 Beside: https://apl.wiki/Beside

00:09:46 ADSP C++ episode: https://adspthepodcast.com/2021/12/10/Episode-55.html

00:09:46 ADSP BQN episode: https://adspthepodcast.com/2021/12/17/Episode-56.html

00:10:30 BQN solutions: https://github.com/codereport/LeetCode/blob/master/0269_Problem_1.bqn#L5

00:10:31 Iota sequence: https://apl.wiki/Index_Generator

00:10:31 J solution: https://tio.run/##y/r/303B1kpBWyFTjys1OSNfwdBAwU3B9P9/AA

00:12:22 Stephen's blog post: https://www.5jt.com/the-rest-is-silence

00:12:22 APL solution: https://tryapl.org/?clear&q=%E2%8E%95IO%E2%86%900%20%E2%8B%84%20F%20%E2%86%90%20%2B%E2%88%98%E2%8D%B3%20%E2%8B%84%2010%20F%205&run

00:16:15 BQN solution using After: https://mlochbaum.github.io/BQN/try.html#code=RiDihpAgK+KfnOKGlQoxMCBGIDU=

00:18:21 The [APL] Orchard:

Brooke Allen - a life of adventure Dec 11, 2021

Show notes

Array Cast - December 11, 2021

Show Notes

Many thanks to Adám Brudzewsky for collecting these links

00:01:53 Dyalog ’21 videos: https://dyalog.tv/Dyalog21

00:02:10 APL ∊ BCN: https://apl.wiki/APL_∊_BCN

00:02:10 Advent of Code: https://apl.wiki/Advent_of_Code

00:02:56 J903 Beta: https://code.jsoftware.com/wiki/System/Installation#J903_BETA

00:03:49 Brooke Allen's website: https://brookeallen.com/

00:06:32 COBOL: https://en.wikipedia.org/wiki/COBOL

00:06:32 COBOL reserved words: https://www.ibm.com/docs/en/iis/9.1?topic=words-cobol-reserved

00:07:01 Fortran: https://en.wikipedia.org/wiki/Fortran

00:07:01 Iverson’s A Programming Language textbook: http://apl.wiki/A_Programming_Language

00:07:41 APL\360 manual: http://www.bitsavers.org/pdf/ibm/apl/GH20-0683-1_APL_360_Users_Manual_Mar70.pdf

00:09:11 Iverson's algebra book: https://www.jsoftware.com/books/pdf/algebra.pdf

00:11:12 BASIC https://en.wikipedia.org/wiki/BASIC

00:21:45 IBM 5110: https://en.wikipedia.org/wiki/IBM_5110

00:23:19 IBM PC: https://en.wikipedia.org/wiki/IBM_Personal_Computer

00:27:31 Dennis Shasha: https://en.wikipedia.org/wiki/Dennis_Shasha

Tacit #3 (and other topics) Nov 27, 2021

Show notes

Array Cast - November 27, 2021 Show Notes

00:00:42 J Wiki: https://code.jsoftware.com/wiki/Main_Page

00:01:04 APL Wiki: https://apl.wiki

00:01:14 Vector Journal: https://vector.org.uk/

00:02:04 J Forums: https://code.jsoftware.com/wiki/System/Forums

00:03:47 Tacit programming: https://en.wikipedia.org/wiki/Tacit_programming

00:03:58 Previous episodes on tacit programming: https://www.arraycast.com/episodes/episode-09-tacit-programming and https://www.arraycast.com/episodes/episode11-why-tacit

00:04:51 Perl weekly challenge 88: https://theweeklychallenge.org/blog/perl-weekly-challenge-088/

00:07:53 Adám's initial solution in APL: https://tryapl.org/?clear&q=%7B%C3%97%2F%E2%8D%B5%5B~%E2%8D%A41%200%E2%8D%A8%E2%8D%B3%E2%89%A2%E2%8D%B5%5D%7D10%205%207%208&run

00:10:14 Stephen's initial solution in K: https://tio.run/##y9bNS8/7/79aQ0u/QlO1otbQQMFUwVzB4v9/AA

00:10:14 Stephen's initial solution in APL: https://tryapl.org/?clear&q=%7B(%C3%97%2F%E2%8D%B5)%C3%B7%E2%8D%B5%7D10%205%207%208&run

00:11:51 Bob's J solution: https://tio.run/##y/oPBIZqGlr6MXqahgYKpgrmChYKAA and video at https://www.youtube.com/watch?v=0GPoCk__2lw

00:12:06 Conor's revamp of J into C++: https://www.youtube.com/playlist?list=PLVFrD1dmDdvfVhYLU_iKkV67X9XqCJLWe

00:12:28 Outfix: https://code.jsoftware.com/wiki/Vocabulary/bslashdot#dyadic

00:13:27 Conor's solutions: https://github.com/manwar/perlweeklychallenge-club/tree/master/challenge-088/conor-hoekstra

00:16:40 Conor's YouTube video: https://youtu.be/bXsKo2ZhgTg

Dyalog ‘21 Live Nov 13, 2021

Show notes

Array Cast - November 13, 2021 Show Notes

Link to presentation resources of Dialog ‘21
https://www.dyalog.com/user-meetings/dyalog21.htm

00:00:30 Dyalog User Meeting '21: https://www.dyalog.com/user-meetings/dyalog21.htm

00:03:03 Richard Park's presentation on the Dyalog Media Update: TBA

00:04:10 ShapeRank: https://github.com/f5devcentral/shapeRank

00:05:50 Gitte on Array Cast: https://www.arraycast.com/episodes/episode12-gitte-christensen

00:07:45 Brian Becker's presentation about Packaging Dyalog Tools / Tatin: TBA

00:09:05 Hashback #! scripting presentation: TBA

00:09:05 Link presentation: TBA

00:11:27 Rodrigo's presentation on Py'n'APL: TBA

00:14:10 C++ compiler explorer: https://godbolt.org/

00:21:00 Ken Iverson's “Notation as a Tool of Thought” Paper (pdf): https://www.eecg.utoronto.ca/~jzhu/csc326/readings/iverson.pdf

00:27:21 Kimmo Linna's RSConnect: https://github.com/kimmolinna/rsconnect

00:29:15 TamStat: http://www.tamstat.com/

00:33:24 CodeGolf website: http://codegolf.stackexchange.com/

00:33:59 The APL Orchard: The APL Orchard

00:53:51 Aaron Hsu on “The Fallacy of Unit Testing”: https://www.sacrideo.us/the-fallacy-of-unit-testing/

Roger Hui (1953-2021) Oct 30, 2021

Show notes

Array Cast - October 30, 2021 Show Notes

00:00:00 Roger Hui: https://apl.wiki/Roger_Hui
00:00:00 Eric Iverson: https://apl.wiki/Eric_Iverson
00:00:00 Eric Iverson's announcement: https://www.jsoftware.com/pipermail/programming/2021-October/059091.html
00:00:00 J: https://apl.wiki/J
00:00:00 Ken: https://apl.wiki/Ken_Iverson
00:02:24 Dyalog '21: https://www.dyalog.com/user-meetings/dyalog21.htm
00:02:24 Memorial service: https://youtube.com/watch?v=_8FG81Ze1aM
00:02:51 Morten Kromberg: https://apl.wiki/Morten_Kromberg
00:02:51 Dyalog Ltd.: https://apl.wiki/Dyalog_Ltd.
00:04:11 Gitte Christensen: https://apl.wiki/Gitte_Christensen
00:04:59 John Scholes: https://apl.wiki/John_Scholes
00:04:59 Dan Baronet: https://apl.wiki/Dan_Baronet
00:05:53 Pearly gates: https://en.wikipedia.org/wiki/Pearly_gates
00:06:22 Galactic Emperor: https://www.jsoftware.com/papers/50/50_49.htm
00:06:22 Monument quality code: https://forums.dyalog.com/viewtopic.php?f=30&t=1638&p=6456&hilit=monument#p6453
00:06:58 Rob Hodgkinson's response: https://www.jsoftware.com/pipermail/programming/2021-October/059124.html
00:08:50 I.P. Sharp Associates: https://apl.wiki/I.P._Sharp_Associates
00:09:51 Arthur Whitney: https://apl.wiki/Arthur_Whitney
00:11:30 Adaytum: https://www.computerweekly.com/feature/Cognos-acquires-Adaytum-and-bolsters-performance-management-agenda
00:12:16 Jsoftware: https://apl.wiki/Jsoftware
00:13:05 Cognos: https://en.wikipedia.org/wiki/Cognos
00:14:24 Dfns: https://apl.wiki/Dfn
00:14:24 First axis emphasis: https://apl.wiki/Leading_axis_theory
00:14:24 Sharp APL: https://apl.wiki/Sharp_APL
00:15:59 Ravel: https://apl.wiki/Ravel
00:15:59 Table function: https://apl.wiki/Table
00:16:35 Identity functions: https://apl.wiki/Same
00:16:35 Take: https://apl.wiki/Take
00:16:35 Take: https://apl.wi

Gitte Christensen of Dyalog Ltd. Oct 16, 2021

Show notes

Array Cast - October 16, 2021 Show Notes

0:02:00 Dyalog 21 November 8-9
0:02:30 APL Campfire
0:03:23 APL Logo Design
0:36:55 Dyalog Forums
0:38:23 APL Wiki
0:40:00 Dyalog Search Resource Map
1:00:45 APL Orchard
1:08:00 Joel Hough 2011 Contest Winner
1:11:18 Asher Mancinelli’s YouTube channel

Why Tacit? Oct 02, 2021

Show notes

Array Cast - October 18, 2021 Show Notes

0:01:34 Dyalog 21 November 8-9
0:03:25 Henry Rich talks Tacit on Array Cast
0:03:40 Conjunctions and Adverbs in J
0:05:24 Henry Rich’s email announcing Tacit Modifiers
0:09:00 Tacit definition
0:09:20 Tacit version of Average in J
0:10:40 Inverses in J
0:11:42 Obverse conjunction in J
0:14:10 Category Theory
0:16:15 Guy Steele “Growing a Language” APL mention p. 6
0:50:40 Stephen Taylor’s blog post on Tacit Programs
1:02:00 Travis Oliphant interviewed by Lex Fridman

Eric Iverson Sep 18, 2021

Show notes

Array Cast - September 18, 2021 Show Notes

0:01:50 The Ridiculously Early J Morning Show (youtube)
The Ridiculously Early J Morning Show (twitch)
0:02:54 Eric_Iverson
0:03:10 Ken_Iverson
0:05:18 A_Programming_Language
0:07:28 Elementary_Functions_An_Algorithmic_Treatment
0:09:14 IBM_System/360
0:09:59 I.P._Sharp_Associates
0:10:13 APL\1130
0:11:39 Ian_Sharp
0:12:14 Larry_Breed
0:12:36 Time-sharing
0:13:01 SHARP_APL
0:13:11 Siemens_System_4004 (in German)
0:15:54 Thomas_J._Watson_Research_Center ("Mohansic Labs")
0:16:44 IBM_Research
0:18:04 PL/I
0:18:25 Strand_notation
0:18:33 Enclose
0:18:33 Array_model
0:18:33 Box
0:20:22 APL2
0:21:40 Zoo Story: How the I.P. Sharp APL Development Group Got its Name
0:22:30 IBM_Basic_Assembly_Language_and_successors
0:24:30 Index Origin
0:25:19 APL\3000 (Larry Breed's compiler)
0:30:36 IBM_Personal_Computer
0:31:31 Roger_Moore_(computer_scientist)
0:31:35 Intel_8086
0:34:35 Roger_Hui
0:40:04 J1990 (1990 conference paper)
0:41:10 Jsoftware (Iverson Software Inc.)
0:48:22 https://github.com/jsoftware/jsource (source)
0:57:03 Catalan Labs (video)
1:03:04 https://xkcd.com/2343/
1:03:23 Jeh_language
1:09:05 Glyph
1:10:32 <

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