Array Cast - September 2, 2022
Show Notes

Many thanks to Bob Therriault for gathering these links:

[01] 00:02:10 Dyalog winners https://www.dyalog.com/news/151/420/2022-APL-Problem-Solving-Competition-Winners.htm
[email protected] Transcript Producer?
[02] 00:03:43 Rodrigo's episode https://www.arraycast.com/episodes/episode20-rodrigo-girao-serrao
Hi res J icon https://code.jsoftware.com/wiki/J_Logos
[03] 00:04:10 J reference card USLetter https://code.jsoftware.com/wiki/File:B.USLETTER.pdf
A4 https://code.jsoftware.com/wiki/File:B.A4.pdf
[04] 00:04:37 Jwiki video https://www.youtube.com/watch?v=x2hsnuxK79c
Jwiki blue wiki sign up https://code.jsoftware.com/wiki/About
Jwiki yellow wiki sign up https://code2.jsoftware.com/wiki/About
[05] 00:06:21 New York Meet-up https://www.meetup.com/programming-languages-toronto-meetup/events/287729348/
[06] 00:07:00 IPSA https://en.wikipedia.org/wiki/I._P._Sharp_Associates
[07] 00:07:46 Carleton University https://carleton.ca
[08] 00:08:50 Data Processing Institute https://dpi-canada.com/about-us/our-history/
[09] 00:09:00 Cluster Analysis https://en.wikipedia.org/wiki/Cluster_analysis
[10] 00:10:30 Ian Sharp https://aplwiki.com/wiki/Ian_Sharp
[11] 00:14:30 IBM 2741 https://en.wikipedia.org/wiki/IBM_2741#APL\360
[12] 00:17:07 Larry Breed https://en.wikipedia.org/wiki/Lawrence_M._Breed
[13] 00:17:13 Eric Iverson https://aplwiki.com/wiki/Eric_Iverson
[14] 00:18:32 Ken Iverson https://aplwiki.com/wiki/Ken_Iverson
[15] 00:18:40 APL Quote Quad https://aplwiki.com/wiki/APL_Quote_Quad
[16] 00:22:00 Dome Petrolium https://en.wikipedia.org/wiki/Dome_Petroleum
[17] 00:25:45 Arthur Whitney https://en.wikipedia.org/wiki/Arthur_Whitney_(computer_scientist)
[18] 00:26:30 Roger Hui https://en.wikipedia.org/wiki/Roger_Hui
[19] 00:35:30 Massey Ferguson https://www.masseyferguson.com/en.html
[20] 00:39:20 Morgan Stanley https://www.mor

Array Cast - August 19, 2022
Show Notes

Many thanks to Marshall Lochbaum, Rodrigo Girão Serrão, Bob Therriault, Conor Hoekstra, Adám Brudzewsky and Romilly Cocking for gathering these links:

[01] 00:00:03 BYTE magazine https://en.wikipedia.org/wiki/Byte_(magazine)
[02] 00:01:02 Org Mode https://orgmode.org/
[03] 00:02:58 Toronto Meet-up https://www.meetup.com/en-AU/programming-languages-toronto-meetup/events/287695788/
New York Meet-up https://www.meetup.com/programming-languages-toronto-meetup/events/287729348/
[04] 00:04:19 Morten Kromberg episode https://www.arraycast.com/episodes/episode21-morten-kromberg
[05] 00:05:01 Romilly's video 'An Excellent Return' https://dyalog.tv/Dyalog08/?v=thr-7QfQWJw
[06] 00:06:12 Ferranti Pegasus computer https://en.wikipedia.org/wiki/Ferranti_Pegasus
[07] 00:09:09 System 360 in APL http://keiapl.org/archive/APL360_UsersMan_Aug1968.pdf
[08] 00:16:50 Mind Map https://en.wikipedia.org/wiki/Mind_map
[09] 00:17:00 Dyalog https://www.dyalog.com/
[10] 00:18:20 Digitalk https://winworldpc.com/product/digital-smalltalk/5x
[11] 00:18:30 Smalltalk https://en.wikipedia.org/wiki/Smalltalk
[12] 00:21:17 Raspberry Pi https://www.raspberrypi.org/
[13] 00:22:10 Robotics on Dyalog website https://www.dyalog.com/blog/2014/08/dancing-with-the-bots/
[14] 00:22:45 Neural Network https://en.wikipedia.org/wiki/Neural_network
David Marr https://en.wikipedia.org/wiki/David_Marr_(neuroscientist)
[15] 00:23:21 Jetson Nano https://www.nvidia.com/en-us/autonomous-machines/embedded-systems/jetson-nano/
[16] 00:23:38 Spiking neural networks https://en.wikipedia.org/wiki/Spiking_neural_network
[17] 00:24:02 JAX https://jax.readthedocs.io/en/latest/notebooks/quickstart.html
[18] 00:27:00 Numpy https://numpy.org/
[19] 00:28:21 Nested arrays https://aplwiki.com/wiki/Nested_array
[20] 00:29:07 flip Numpy https://numpy.org/doc/stable/reference/generated/numpy.flip.html
flipud https://numpy.org/d

Array Cast - August 5, 2022
Show Notes

Many thanks to Bob Therriault, João Araújo and Rodrigo Girão Serrão for gathering these links:

[01] 00:01:40 J wiki features https://www.youtube.com/watch?v=dWqixYyb52Q
[02] 00:02:31 J promo video https://www.youtube.com/watch?v=vxibe2QOA0s
[03] 00:03:00 British APL Association https://britishaplassociation.org/
              Vector https://vector.org.uk/
[04] 00:03:27 Conor's Twin Algorithms presentation https://www.youtube.com/watch?v=NiferfBvN3s
[05] 00:08:13 Numpy https://numpy.org/
              JAX https://jax.readthedocs.io/en/latest/notebooks/quickstart.html
              Julia https://julialang.org/
[06] 00:08:49 João's array Google search engine https://cse.google.com/cse?cx=e5ff9c06c246f4ca5
[07] 00:09:00 João's Iverson mirror site https://joaogui1.github.io/keiapl/
              Original link http://keiapl.org/
[08] 00:11:55 João's website https://joaogui1.netlify.app/
[09] 00:13:10 BQN https://mlochbaum.github.io/BQN/
              Dyalog APL https://www.dyalog.com/
              J https://www.jsoftware.com/indexno.html
[10] 00:13:50 Vannevar Bush  https://en.wikipedia.org/wiki/Vannevar_Bush
              Alan Kay https://en.wikipedia.org/wiki/Alan_Kay
[11] 00:14:13 Tool for Thought Rocks https://lu.ma/toolsforthoughtrocks
https://www.youtube.com/c/ToolsforThoughtRocks?app=desktop
[12] 00:14:40 Obsidian discord https://discord.com/invite/veuWUTm
[13] 00:15:10 Roam https://roamresearch.com/
              Obsidian https://obsidian.md/
              Logseq https://logs

Array Cast - July 22, 2022
Show Notes

Many thanks to Bob Therriault, Marshall Lochbaum and Adám Brudzewsky for gathering these links:

[01] 00:01:10 Dyalog Problem /solving Contest https://contest.dyalog.com/?goto=welcome
[02] 00:01:35 Dyalog Early Bird Discount https://www.dyalog.com/user-meetings/dyalog22.htm
[03] 00:03:50 Iverson Notation https://apl.wiki/Iverson_Notation
[04] 00:05:06 GOTO in Early APL https://www.jsoftware.com/papers/APL1.htm#1.2
[05] 00:06:06 Control Structures https://en.wikipedia.org/wiki/Control_flow
[06] 00:08:33 Goto in APL https://aplwiki.com/wiki/Branch
[07] 00:09:45 Goto in J https://code.jsoftware.com/wiki/Vocabulary/gotodot
[08] 00:09:55 try. catch. throw. in J https://code.jsoftware.com/wiki/Vocabulary/trydot
[09] 00:10:46 whilst. in J https://code.jsoftware.com/wiki/Vocabulary/whiledot
[10] 00:14:09 APL Control Structures https://aplwiki.com/wiki/Control_structure
[11] 00:17:43 J Control Structures https://code.jsoftware.com/wiki/Vocabulary/ControlStructures
[12] 00:18:00 if. else. elseif. do. end. in J https://code.jsoftware.com/wiki/Vocabulary/ifdot
[13] 00:20:40 singleton in APL https://aplwiki.com/wiki/Singleton
[14] 00:21:01 for. for_ijk. in J https://code.jsoftware.com/wiki/Vocabulary/fordot
[15] 00:23:45 Go language for loop syntax https://go.dev/tour/flowcontrol/1
[16] 00:25:22 Javascript Mapping arguments] https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map#syntax
[17] 00:26:21 Clojure Mapping https://clojuredocs.org/clojure.core/map
[18] 00:27:40 BQN Control Structures https://mlochbaum.github.io/BQN/doc/control.html
[19] 00:28:20 BQN Blocks https://mlochbaum.github.io/BQN/doc/block.html
[20] 00:28:49 BQN ? predicate https://mlochbaum.github.io/BQN/doc/block.html#predicates
[22] 00:31:05 APL if else operands https://dfns.dyalog.com/n_else.htm
[23] 00:31:42 BQN Stranded Block functions https://mlochbaum.github.io/BQN/doc/control.html#switch-case
[24] 00:32:30 APL Arguments and Operands

Array Cast - July 8, 2022
Show Notes

[01] 00:01:15 Dyalog Problem /solving Contest https://contest.dyalog.com/?goto=welcome
[02] 00:01:35 Dyalog Early Bird Discount https://www.dyalog.com/user-meetings/dyalog22.htm
[03] 00:02:40 Jeremy Howard wikipedia https://en.wikipedia.org/wiki/Jeremy_Howard_(entrepreneur)
Fastmail https://www.fastmail.com/
Optimal Decisions Group https://www.finextra.com/newsarticle/18047/choicepoint-acquires-insurance-analytics-firm-optimal-decisions
[04] 00:04:30 APL Study Group https://forums.fast.ai/t/apl-array-programming/97188
[05] 00:05:50 McKinsey and Company https://en.wikipedia.org/wiki/McKinsey_%26_Company
[06] 00:10:20 AT Kearney https://en.wikipedia.org/wiki/AT_Kearney
[07] 00:12:33 MKL (Intel) https://en.wikipedia.org/wiki/Math_Kernel_Library
[08] 00:13:00 BLAS http://www.netlib.org/blas/
[09] 00:13:11 Perl BQN https://mlochbaum.github.io/BQN/running.html
[10] 00:14:06 Raku https://en.wikipedia.org/wiki/Raku_%28programming_language%29
[11] 00:15:45 kaggle https://www.kaggle.com/
kaggle competition https://www.kaggle.com/competitions/unimelb/leaderboard
[12] 00:16:52 R https://en.wikipedia.org/wiki/R_(programming_language)
[13] 00:18:50 Neural Networks https://en.wikipedia.org/wiki/Artificial_neural_network
[14] 00:19:50 Enlitic https://www.enlitic.com/
[15] 00:20:01 Fast.ai https://www.fast.ai/about/
[16] 00:21:02 Numpy https://numpy.org/
[17] 00:21:26 Leading Axis Theory https://aplwiki.com/wiki/Leading_axis_theory
[18] 00:21:31 Rank Conjunction https://code.jsoftware.com/wiki/Vocabulary/quote
[19] 00:21:40 Einstein notation https://en.wikipedia.org/wiki/Einstein_notation
[20] 00:22:30 GPU https://en.wikipedia.org/wiki/Graphics_processing_unit
[21] 00:22:55 CUDA https://en.wikipedia.org/wiki/CUDA
[22] 00:23:30 Map https://en.wikipedia.org/wiki/Map_(higher-order_function)
[23] 00:24:0

Array Cast - June 24, 2022
Show Notes

Many thanks to Adám Brudzewsky for gathering these links:

[1] 00:01:00 APL logo: https://aplwiki.com/wiki/APL_logo
[2] 00:01:05 Array Cast merch: https://www.redbubble.com/shop/ap/113247610
[3] 00:01:35 Eso Lang Conf 2022: https://esolangconf.com/
Eso Lang Conf Twitter: https://twitter.com/EsolangT
[4] 00:02:35 ADSP: The Podcast: https://adspthepodcast.com/
[5] 00:03:10 Array Cast: https://aplwiki.com/wiki/Array_Cast
[6] 00:05:10 Centenary of Iverson's birth: https://britishaplassociation.org/iverson-centenary-december-2020/
[7] 00:10:29 APL Farm: https://apl.wiki/APL_Farm
[8] 00:11:45 Conor's YouTube channel: https://www.youtube.com/code_report
[9] 00:12:55 J: From C to C++20: https://www.youtube.com/playlist?list=PLVFrD1dmDdvfVhYLU_iKkV67X9XqCJLWe
[10] 00:15:04 The third podcast: https://www.buzzsprout.com/1951960
[11] 00:17:05 Functional Geekery: https://www.functionalgeekery.com/
[12] 00:17:59 TryAPL: https://tryapl.org
[13] 00:18:29 Joel Kaplan episode: https://www.arraycast.com/episodes/episode27-joel-kaplan
[14] 00:18:54 Stevan Apter episode: https://www.arraycast.com/episodes/episode26-stevan-apter
[15] 00:19:23 Rank episode: https://www.arraycast.com/episodes/episode28-rank-and-leading-axis
[16] 00:19:54 CoRecursive podcase episode: https://corecursive.com/065-competitive-coding-with-conor-hoekstra/
Companion video: https://www.youtube.com/watch?v=lG-CcPb7ggU
[17] 00:23:30 Readability: https://aplwiki.com/wiki/Readability
[18] 00:35:48 Our website: https://arraycast.com
[19] 00:36:42 J wiki: https://code.jsoftware.com/wiki
J wiki search: https://code.jsoftware.com/wiki/Special:JwikiSearch
[20] 00:37:26 Stephen Taylor's blog: https://5jt.com
This episode's show-notes: https://www.arraycast.com/episode-30-show-notes
[21] 00:38:33 J-APL table: http://sigapl.org/_J-Dyalog_APL_Rosetta.html
[22] 00:41:05 First episode:

Array Cast - June 10, 2022
Show Notes

[01] 00:01:22 awesome-q.org https://github.com/StephenTaylor-Kx/awesome-q
[02] 00:01:35 reddit/apljk https://www.reddit.com/r/apljk/comments/v5cr09/blog_post_square_joy_preorder/
[03] 00:02:04 BQN keyboard https://gitlab.freedesktop.org/xkeyboard-config/xkeyboard-config/-/blob/master/symbols/bqn
[04] 00:03:30 kx download https://kx.com/developers/download-licenses/
[05] 00:04:46 aplfarm https://aplwiki.com/wiki/APL_Farm
[06] 00:05:03 J Playground https://jsoftware.github.io/j-playground/bin/html2/
[07] 00:05:30 Interpreters for Array languages" https://aplwiki.com/wiki/Running_APL
[08] 00:06:06 List of array languages https://aplwiki.com/wiki/List_of_open-source_array_languages
[09] 00:08:39 BQN https://mlochbaum.github.io/BQN/running.html
[10] 00:09:32 Wiki Content https://aplwiki.com/wiki/APL_Wiki:Content_guidelines
[11] 00:11:20 Ivy https://aplwiki.com/wiki/Ivy
[12] 00:13:44 Episode 28 Rank and Leading Axis Theory https://www.arraycast.com/episodes/episode28-rank-and-leading-axis
[13] 00:15:20 ⌿ Reduce First APL https://aplwiki.com/wiki/Reduce
[14] 00:17:10 Scalar multiplication https://aplwiki.com/wiki/Times
[15] 00:18:01 matrix multiplication https://en.wikipedia.org/wiki/Matrix_multiplication
[16] 00:19:02 Rank https://aplwiki.com/wiki/Rank
[17] 00:19:12 Axis operator https://apl.wiki/Iverson_notation
[18] 00:21:42 Reduce https://aplwiki.com/wiki/Reduce
[19] 00:23:30 Bracket axis https://aplwiki.com/wiki/Function_axis
[20] 00:24:50 GnuAPL https://aplwiki.com/wiki/GNU_APL
[21] 00:25:33 k-cells of array https://aplwiki.com/wiki/Frame
[22] 00:26:20 each function https://aplwiki.com/wiki/Each
[23] 00:26:35 Negative rank https://code.jsoftware.com/wiki/Essays/Negative_Rank
[24] 00:29:11 ADSP podcast June 3 https://adspthepodcast.com/2022/06/03/Episode-80.html
[25] 00:32:27 stride https://en.wikipedia.org/wiki/Stride_of_an_array<

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:[email protected]
[06] 00:05:18 Rank https://aplwiki.com/wiki/Rank
Leading Axis Theory https://aplwiki.com/wiki/Leading_axis_theory
[07] 00:06:24 Adoption in APL https://aplwiki.com/wiki/Leading_axis_theory#Adoption_in_APL
[08] 00:08:27 APL https://aplwiki.com/wiki/Main_Page
BQN https://mlochbaum.github.io/BQN/
J https://www.jsoftware.com/#/README
[09] 00:10:19 + Rank 0 https://aplwiki.com/wiki/Add
Rank operator: https://apl.wiki/Rank_(operator)
Multidimensional arrays: https://apl.wiki/Array_model
Ravel order: https://apl.wiki/Ravel_order
[10] 00:10:53 ≡ Match Rank Infinity https://aplwiki.com/wiki/Match
APL: https://tryapl.org/?clear&q=a%E2%86%903%203%E2%8D%B4%E2%8D%B39%20%E2%8B%84%20b%E2%86%903%203%E2%8D%B4%E2%8D%B36%20%E2%8B%84%20a(%E2%89%A1%E2%8D%A41)b&run
BQN: https://mlochbaum.github.io/BQN/try.html#code=YeKGkDPigL8z4qWKMSvihpU5IOKLhCBi4oaQM+KAvzPipYoxK+KGlTYg4ouEIGEg4omh4o6JMSBi
J: https://jsoftware.github.io/j-playground/bin/html2/#code=a%3D%3A%20i.%203%203%0Ab%3D%3A%203%203%20%24%20i.%206%0Aa%20-%3A%221%20b%0A
Function rank: https://apl.wiki/Function_rank
Raze (;): https://apl.wiki/Raze
[11] 00:12:23 Rank of verb in J https://www.jsoftware.com/help/jforc/loopless_code_i_verbs_have_r.htm#_Toc191734331
Rank of noun in J https://www.jsoftware.com/help/jforc/declarations.htm#_Toc191734319
[12] 00:14:50 ". Do verb https://code.jsoftware.com/wiki/Vocabulary/quotedot

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/wiki/Fred_Brooks
[09] 00:12:36 https://en.wikipedia.org/wiki/David_E._Shaw
[10] 00:15:25 https://en.wikipedia.org/wiki/Jeff_Bezos
[11] 00:17:00 https://en.wikipedia.org/wiki/Digital_Equipment_Corporation
[12] 00:18:15 https://en.wikipedia.org/wiki/IBM_5100
[13] 00:18:55 https://en.wikipedia.org/wiki/Bill_Gates
[14] 00:18:55 Gates APL Interpreter https://americanhistory.si.edu/comphist/gates.htm#tc30
[15] 00:23:11 https://aplwiki.com/wiki/Bob_Bernecky
[16] 00:26:15 https://mathworld.wolfram.com/NearestNeighborProblem.html
[17] 00:29:26 Generalisation of the Axis operator apl.wiki/Rank (operator)
[18] 00:30:50 https://en.wikipedia.org/wiki/QWERTY
[19] 00:31:37 https://aplwiki.com/wiki/A
[20] 00:34:00 https://aplwiki.com/wiki/K
[21] 00:34:17 APL machine https://aplwiki.com/wiki/APL_Machine
[22] 00:35:07 Analogic https://www.analogic.com/?locale=en
[23] 00:37:07 Aaron Hsu video https://www.youtube.com/watch?v=2FMBf6A2eAA
[24] 00:41:19 http://www.nsl.com/
[25] 00:43:45 https://en.wikipedia.org/wiki/Muhammad_ibn_Musa_al-Khwarizmi
[26] 00:43:52 https://en.wikipedia.org/wiki/Gottfried_Wilhelm_Leibniz#Symbolic_thought
[27] 00:52:30 https://www.ubs.com/ca/en.html
[28] 00:54:20 https://en.wikipedia.org/wiki/Pete_Muller_(businessman_and_singer-songwriter)
[29] 00:56:30

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://en.wikipedia.org/wiki/IBM_1130
[07] 00:05:50 https://apl.wiki/APL%5C1130
[08] 00:06:30 https://apl.wiki/Arthur_Whitney
[09] 00:06:40 https://al.wiki/APL2
[10] 00:06:40 https://apl.wiki/SHARP_APL
[11] 00:06:55 https://apl.wiki/APL%5C360
[12] 00:07:30 https://en.wikipedia.org/wiki/Union_Bank_of_Switzerland
[13] 00:10:30 https://1010data.com/
[14] 00:13:20 https://en.wikipedia.org/wiki/IBM_RPG
[15] 00:15:50 https://en.wikipedia.org/wiki/IBM_Basic_Assembly_Language_and_successors
[16] 00:15:50 https://en.wikipedia.org/wiki/PL/I
[17] 00:15:50 https://en.wikipedia.org/wiki/Cool_(aesthetic)
[18] 00:20:55 https://apl.wiki/Mnemonics#Pairing_glyphs_with_their_meaning
[19] 00:21:15 https://apl.wiki/Ravel
[20] 00:30:55 https://k.miraheze.org/wiki/K3
[21] 00:31:08 https://k.miraheze.org/wiki/K4
[22] 00:39:08 https://code.kx.com/q4m3/
[23] 00:45:38 https://apl.wiki/John_Scholes%27_Conway%27s_Game_of_Life http://dfns.dyalog.com/min_index.htm
http://dfns.dyalog.com/max_index.htm
[24] 00:53:55 https://apl.wiki/Compose
[25] 01:04:58 https://apl.wiki/Inner_Product
[26] 01:17:18 https://nsl.com/k/slack/slack.htm