The presentation recordings from DYNA Fall 2025 are now being published. Watch (or rewatch!) "ArrayLab: Building a 3D APL Game with raylibAPL" by Holden Hoover, a student at the University of Waterloo, at www.youtube.com/watch?v=N6Yx... #DYNA #Dyalog #APL #GameDevelopment

The presentation recordings from DYNA Fall 2025 are now being published. Watch (or rewatch!) "What Can Vectorised Trees Do for You?" by Asher Harvey-Smith at www.youtube.com/watch?v=i6GC... #DYNA #Dyalog #APL #DataStructures

New with Dyalog v20.0: The two common patterns (f Y) g Y and (f X) g Y can now be represented by the new compositional operator behind ( ⍛ ). Discover more at www.youtube.com/watch?v=W6LF... #Dyalog #APL #APLProgramming #BehindOperator

Today we celebrate 105 years since the birth of Ken Iverson, creator of APL. Discover more about this visionary and Turing Award winner at en.wikipedia.org/wiki/Kenneth... #APL #ProgrammingLanguages #KennethIverson

The presentation recordings from DYNA Fall 2025 are now being published. Watch (or rewatch!) "The Data Science Journey" by Josh David at www.youtube.com/watch?v=KGxW... #DYNA #Dyalog #APL #DataScience

#APLQuest 2014-01: Write a function that takes the length of the legs of a triangle as its left argument, and the length of the hypotenuse as its right, and returns 1 if the triangle is a right triangle, 0 otherwise (apl.quest/2014/1/ to test your solution) #APL #PythagoreanTheorem #Geometry

In our latest blog post – www.dyalog.com/blog/2025/12... – we look at keyboard shortcuts in the Dyalog IDEs, and explain ways in which you can reclaim use of the Ctrl key. #Dyalog #APL #DyalogAPL

The presentation recordings from DYNA Fall 2025 are now being published. Watch (or rewatch!) "Dyalog APL: Our (Not So) Secret Ingredient" by Mark Wolfson, CTO of Buyers International Group, at www.youtube.com/watch?v=hnz6... #DYNA #Dyalog #APL #DataAnalytics

Team Dyalog will be attending today's BAA webinar (at 16:00 UTC) to discuss the recent Dyalog v20.0 release. If you have any questions on the new or enhanced functionality, we'll be happy to talk about them with you! How to join the webinar: britishaplassociation.org/webinar-sche... #Dyalog #APL

New with Dyalog v20.0: Expressions can now be evaluated primitive-by-primitive using inline tracing, while accessing arguments and results of each function along the way. Discover more at www.youtube.com/watch?v=UM-a... #Dyalog #APL #DeveloperTools #CodeTracing

Our latest blog post is Asher's review of the first problem in this year's #AdventOfCode. Discover how he gained access to Santa's North Pole base at www.dyalog.com/blog/2025/12... #Dyalog #APL

The presentation recordings from DYNA Fall 2025 are now being published. Watch (or rewatch!) "Static Analysis of APL for Tooling and Compliance" by Aaron Hsu and Brandon Wilson at www.youtube.com/watch?v=d4pR... #DYNA #Dyalog #APL #StaticAnalysis #SoftwareDevelopment

#APLQuest 2013-10: Write a function that solves a set of linear equations (see apl.quest/2013/10/ to test your solution and view ours). #APL #LinearEquations #MatrixDivision

The presentation recordings from DYNA Fall 2025 are now being published. Watch (or rewatch!) An Interface to Kafka by Martina Crippa at www.youtube.com/watch?v=agpQ... #DYNA #Dyalog #Kafka #APL

The presentation recordings from DYNA Fall 2025 are now being published. Watch (or rewatch!) "JAWS – Jarvis and WebSockets" by Brian Becker at www.youtube.com/watch?v=E_lp... #DYNA #Dyalog #APL #WebSockets

New with Dyalog v20.0: Array notation, a literal syntax for most arrays (including nested and high-rank arrays) and namespaces, allows you to write and manipulate literal arrays in a way that was not possible before. Watch: www.youtube.com/watch?v=_F5I... #Dyalog #APL #APLProgramming #ArrayNotation

The presentation recordings from DYNA Fall 2025 are now being published. Watch (or rewatch!) The Dyalog Road Map by Morten Kromberg at www.youtube.com/watch?v=RIM8... #DYNA #Dyalog #APL #SoftwareDevelopment

#APLQuest 2013-09: Write a function that produces n month moving averages for a year's worth of data (see apl.quest/2013/9/ to test your solution and view ours). #APL #MovingAverage #TimeSeriesAnalysis

Learn APL and compete for one of three $100 prizes! There are two months left to enter the 2025.4 round of the APL Challenge. See challenge.dyalog.com for more information and to enter #aplchallenge #apl #dyalog #learnapl

Team Dyalog is growing! We've recently welcomed Asher, who has joined us as a developer. Meet Asher at www.dyalog.com/blog/2025/11... #TeamDyalog #Careers #NewStarter

The latest release of Dyalog – version 20.0 – is now available for everyone. Supported platforms include Microsoft Windows, IBM AIX, Linux (including the Raspberry Pi), and Apple macOS. See www.dyalog.com/dyalog/dyalo... for the release highlights. #dyalog #apl #dyalogapl

It's almost December and that means the annual Advent of Code competition! See aplwiki.com/wiki/Advent_... to view APL solutions to these daily puzzles in previous years, and enter at adventofcode.com #adventofcode #dyalog #apl #programming

#APLQuest 2013-08: Write a function that produces a multiplication table (see apl.quest/2013/8/ to test your solution and view ours). #APL #MultiplicationTable #MatrixGeneration

Team Dyalog is growing! We've recently welcomed Martin, who has joined us as an IT Co-ordinator. Meet Martin at www.dyalog.com/blog/2025/11... #TeamDyalog #Careers #NewStarter

Congratulations Isak Blomster, Oliver Jul Zacho, and Helena Krzysiak, winners of the 2024.3 round of the APL Challenge (our quarterly event aimed at newcomers to APL)! See www.dyalog.com/apl-challeng... for more information. #aplchallenge #apl #dyalog #learnapl

#APLQuest 2013-07: Write a function that selects the floating point (non-integer) numbers from a numeric vector (see apl.quest/2013/7/ to test your solution and view ours). #APL #DataFiltering #FloatingPoint

The latest release of Dyalog – version 20.0 – is now available for DSS subscribers. Supported platforms include Microsoft Windows, IBM AIX, Linux (including the Raspberry Pi), and Apple macOS. See www.dyalog.com/dyalog/dyalo... for the release highlights. #dyalog #apl #dyalogapl

#APLQuest 2013-06: Write a function that returns the magnitude of the range of a numeric array. (see apl.quest/2013/6/ to test your solution and view ours). #APL #Statistics #RangeCalculation

The new round of the APL Challenge is now open! This quarterly competition is open to everyone but is aimed at newcomers to APL – please spread the word to anyone who might be interested. For more information and to enter, see challenge.dyalog.com

#APLQuest 2013-05: Write a function that produces an n×n identity matrix (see apl.quest/2013/5/ to test your solution and view ours). #APL #Matrix #LinearAlgebra

Learn APL and compete for one of three $100 prizes! Don't forget to submit your solutions for the 2025.3 round of the APL Challenge – the deadline is tomorrow (31 October) at 09:00 UTC. See challenge.dyalog.com for more information and to enter. #aplchallenge #apl #dyalog #learnapl

#APLQuest 2013-04: Write a function that returns a 1 if the opening and closing parentheses in a character vector are balanced, or a zero otherwise. (see apl.quest/2013/4/ to test your solution and view ours). #APL #Balance #Parenthesis

Learn APL and compete for one of three $100 prizes! There's only one week left to enter the 2025.3 round of the APL Challenge. See challenge.dyalog.com for more information and to enter. #aplchallenge #apl #dyalog #learnapl

Save the date! Dyalog ’26 will be in Eastbourne, U.K., 12–16 Oct 2026 (Mon–Fri). A week of APL workshops, training, and conversations shaping the future of Dyalog. See usermeeting.dyalog.com #dyalog26 #dyalog #apl

Our latest blog post is the next in our #EmployeeSpotlight series, which celebrates members of Team Dyalog as they reach important milestones. Andrea has reached his first year anniversary with Dyalog Ltd, and www.dyalog.com/blog/2025/10... looks at how she's found her first twelve months.

DYNA Fall 2025 took place in New York City at the end of September. Materials from the presentations and workshops are now available to download – see www.dyalog.com/north-americ... #dyna #dyalog #apl

#APLQuest 2013-03: Write a function that returns the number of words in the given character scalar or vector (see apl.quest/2013/3/ to test your solution and view ours). #APL #WordCount #TextProcessing

DYNA Fall 2025 took place in New York City at the end of September. Our latest blog post – www.dyalog.com/blog/2025/10... – is our review of the presentations, workshops, and community building that took place. #dyna #dyalog #apl

#APLQuest 2013-02: Write a function that returns the percent (from 0 to 100) of passing (65 or higher) grades in a vector of grades (see apl.quest/2013/2/ to test your solution and view ours). #APL #DataAnalysis #Percentages

Busy solving Rust problems but now obsessed with APL. I guess time to implement APL primitives in Rust?

Our #APLMonday series is changing! From this week, we will be posting questions from #APLQuest. This week's question is 2013-01: Write a function to produce a vector of the first n odd numbers (see apl.quest/2013/1/ to test your solution and view ours). #APL #OddNumbers #SequenceGeneration

Finished up DYNA Fall 2025, had an absolute blast. The rabbit hole of array programming just goes deeper and deeper, but honestly I'd be disappointed if it didn't. Thanks to everyone who put up with my constant stream of questions (especially Aaron), and hope to see you all again soon.

And a very special thanks to @codereport.bsky.social for introducing me to this paradigm in the first place. Not sure how many people end up in the ADSP -> ArrayCast -> Dyalog conference pipeline, but I highly recommend it @dyalog.bsky.social #arrayprogramming #apl

Our latest blog post is by the 2025 APL Forge winner, Borna Ahmadzadeh. His introduction to his efforts and prize-winning APLearn submission – www.dyalog.com/blog/2025/10... – are a tantalising preview of what we can expect from his Dyalog '26 presentation! #aplforge #apl #dyalog #programming

Learn APL and compete for one of three $100 prizes! There's only one month left to enter the 2025.3 round of the APL Challenge. See challenge.dyalog.com for more information and to enter. #aplchallenge #learnapl #apl

Dyalog NA User Meeting starts tomorrow! Excited to meet everyone and learn about APL #APL #arraylang #NYC @dyalog.bsky.social

DYNA Fall 2025 starts today! Morten Kromberg and other members of Team Dyalog will be joined by a capacity gathering of North American APLers in New York city for two days of presentations, workshops, and community building. Highlights and materials to follow! #DYNA #APL #NewYork #TechConference

This one is simple #APLMonday #APL

Announcing the winner of the 2025 APL Forge – Borna Ahmadzadeh. Borna will present his winning work at Dyalog '26, but you can meet him before then at www.dyalog.com/news/164/420... #aplforge #apl #dyalog #programming

All good answers to this one are valid. #APLMonday #Dyalog #APL