Array Cast - January 31, 2024
Show Notes
Thanks to Bob Therriault, Marshall Lochbaum, Adám Brudzewsky, Phineas Porter, and Conor Hoekstra for gathering these links:
[01] 00:01:30 Dyalog APL Challenge https://challenge.dyalog.com/
Functional Programming Madrid Meetup https://www.meetup.com/en-AU/fp-madrid/events/305624889/
APL Spring Meeting for APL Germany https://apl-germany.de/tagungen/
ArrayPortal Beta https://www.arrayportal.com
BAA Vector BiWeekly Meetups https://britishaplassociation.org/webinar-schedule-2025/
Tacit Talk Episode 14 with Madeline Vergani https://tacittalk.com/2025/01/25/Episode-14.html
Tacit Talk Episode 15 Array Theory and Nial https://tacittalk.com/2025/01/29/Episode-15.html
Madeline Vergani Episode 88 on the ArrayCast https://www.arraycast.com/episodes/episode88-tinyapl
OmniBar https://omnibar.rubenverg.com/?s=rank&ig=true&in=true&id=false&hid=true
tinyAPL Programming Language https://github.com/RubenVerg/tinyapl/blob/main/README.md
BQN Rank function https://mlochbaum.github.io/BQN/doc/shape.html
Nub In https://aplwiki.com/wiki/Nub_in
ADSP 176 https://adspthepodcast.com/2024/04/05/Episode-176.html
Nick Psaris Episode 42 on the ArrayCast https://www.arraycast.com/episodes/episode42-nick-psaris-q
Jump Trading https://www.jumptrading.com
UBS https://www.ubs.com/ca/en.html
CitiBank https://en.wikipedia.org/wiki/Citibank
Jonny Press Episode 85 on the ArrayCast https://www.arraycast.com/episodes/episode85-jonnypress
Hadley Wickham Spit Apply Combine paper https://vita.had.co.nz/papers/plyr.pdf
q Programming Language https://en.wikipedia.org/wiki/Q_(programming_language_from_Kx_Systems)
[02] 00:12:06 J Wiki https://code.jsoftware.com/wiki/Category:Home
"Is a Scalar an Array?" Roger Hui https://code.jsoftware.com/wiki/Essays/Scalars
NumPy another Iverson Ghost https://dev.to/bakerjd99/numpy-another-iverson-ghost-9mc
Numpy EcoSystem https://numpy.org
Python Programming Language https://en.wikipedia.org/wiki/Python_(programming_language)
Scala Programming Language https://en.wikipedia.org/wiki/Scala_(programming_language)
Haskell Programming Language https://en.wikipedia.org/wiki/Haskell
JavaScript Programming Language https://en.wikipedia.org/wiki/JavaScript
Microservice Framework https://en.wikipedia.org/wiki/Microservices
Volcker Rule https://en.wikipedia.org/wiki/Volcker_Rule
RobinHood Markets https://en.wikipedia.org/wiki/Robinhood_Markets
Citadel https://en.wikipedia.org/wiki/Citadel_LLC
Virtu Financial https://en.wikipedia.org/wiki/Virtu_Financial
Asof Joins https://duckdb.org/docs/guides/sql_features/asof_join
Priority Queue https://en.wikipedia.org/wiki/Priority_queue
Uiua Programming Language https://www.uiua.org/
BQN Programming Language https://mlochbaum.github.io/BQN/
Heap https://en.wikipedia.org/wiki/Heap_(data_structure)
FIFO https://en.wikipedia.org/wiki/FIFO_(computing_and_electronics)
q for Mortals Jeffry Borror https://code.kx.com/q4m3/
[03] 00:31:39 Outer Product https://aplwiki.com/wiki/Outer_Product
Phineas' blog IABDB https://iabdb.me
GhostBusters https://en.wikipedia.org/wiki/Ghostbusters
Phineas' Blog post https://iabdb.me/2020/01/27/fifo-allocation-in-kdb/
My Life as a Quant Emanuel Dermon https://emanuelderman.com/books/my-life-as-a-quant/
[04] 00:43:29 ClickHouse https://clickhouse.com/
SQL DataBase https://en.wikipedia.org/wiki/SQL
Array Functions in ClickHouse https://clickhouse.com/docs/en/sql-reference/functions/array-functions
APL Programming Language https://aplwiki.com/wiki/Main_Page
[05] 00:52:38 KX Systems https://en.wikipedia.org/wiki/Kx_Systems
Ashok Reddy Episode 94 on ArrayCast https://www.arraycast.com/episodes/episode94-kx
Arthur Whitney https://en.wikipedia.org/wiki/Arthur_Whitney_(computer_scientist)
Arthur’s Stats Library https://github.com/KxSystems/kdb/blob/28d14cde9840ddb1d98613560cf5e051ae108a4d/stat.q
Ken Iverson https://aplwiki.com/wiki/Ken_Iverson
[06] 01:00:02 Aaron Hsu Episode 19 on the ArrayCast https://www.arraycast.com/episodes/episode19-aaron-hsu
Roc Programming Language https://www.roc-lang.org
Go Programming Language https://go.dev
Sublime Editor https://www.sublimetext.com
Gary Stevenson https://en.wikipedia.org/wiki/Gary_Stevenson_(economist)
"The Trading Game" Gary Stevenson https://openlibrary.org/books/OL50630319M/Trading_Game
Gappy https://x.com/__paleologo?lang=en&mx=2
Gappy's wisdom https://www.reddit.com/r/quant/comments/1d5z1vl/gappys_wisdom/
Flirting with Models podcast https://www.youtube.com/watch?v=yxqTervPZe8
Odd Lots podcast https://www.youtube.com/watch?v=yxqTervPZe8
[07] 01:08:40 Kdb+ https://en.wikipedia.org/wiki/Kdb%2B
The Big Short https://en.wikipedia.org/wiki/The_Big_Short_(film)
Conor McCarthy Episode 76 on the ArrayCast https://www.arraycast.com/episodes/episode76-conor-mccarthy
KXCon Review Episode 54 on the ArrayCast https://www.arraycast.com/episodes/episode54-kxcon23
Rentehc Hedge Fund https://en.wikipedia.org/wiki/Renaissance_Technologies
Michael Higginson Episode 46 on the ArrayCast https://www.arraycast.com/episodes/episode46-michael-higginson
IP Sharp Episode 91 on the Arraycast https://www.arraycast.com/episodes/episode91-ipsharpdoc
Leslie Goldsmith Episode 47 on the ArrayCast https://www.arraycast.com/episodes/episode47-leslie-goldsmith
[08] 01:16:29 Dynamic Programming https://en.wikipedia.org/wiki/Dynamic_programming
Memoization https://en.wikipedia.org/wiki/Memoization
Memoization Primitive in J https://code.jsoftware.com/wiki/Vocabulary/mcapdot
Sparse Array Primitive in J https://code.jsoftware.com/wiki/Vocabulary/dollardot
BQN Sortedness Page https://mlochbaum.github.io/BQN/implementation/primitive/sort.html
C++ Programming Language https://en.wikipedia.org/wiki/C%2B%2B
Dyalog APL https://www.dyalog.com
[09] 01:24:55 DeepSeek R1 https://github.com/deepseek-ai/DeepSeek-R1/blob/main/DeepSeek_R1.pdf
BQN Indices Inverse https://mlochbaum.github.io/BQN/doc/replicate.html#inverse
Jd Database https://code.jsoftware.com/wiki/Jd/Overview
ngn/k Programming Language https://codeberg.org/ngn/k
Contact AT ArrayCast DOT Com