DYNA26 took place in New York City at the end of last month (April 27). Our latest blog post – www.dyalog.com/blog/2026/05... is our review of the presentations and community building that took place. #DYNA #Dyalog #APL

#APLQuest 2016-02: Write a function that takes a numeric vector as its right argument and returns the median of the array (see apl.quest/2016/2/ to test your solution and view ours). #APL #Statistics #Median

For the first time, the D'Hondt method is being used to apportion seats in today's Welsh elections. In his timely blog post – www.dyalog.com/blog/2026/05... – Asher explores an #APL implementation of this proportional apportionment technique. #Dyalog #dhondt #Senedd

#APLQuest 2016-01: Write a function that takes a numeric array as its right argument and returns the mean (average) of the array (see apl.quest/2016/1/ to test your solution and view ours). #APL #Statistics #MeanAverage

The 2026.2 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 #aplchallenge #apl #dyalog #learnapl

Learn APL and compete for one of three $100 prizes! Don't forget to submit your solutions for the 2026.1 round of the APL Challenge – the deadline is tomorrow (30 April) at 08:00 UTC. See challenge.dyalog.com for more information and to enter. #aplchallenge #apl #dyalog #learnapl

One of our users has been exploring a Monte Carlo Simulation using #APL with no additional libraries or tools. Watch his introductory video at www.youtube.com/watch?v=dZoe... – a follow-up video walking through his code has been promised... #Dyalog #MonteCarloSimulation #Statistics

#APLQuest 2015-10: Write a function that takes an integer right argument representing the order of the Pascal's triangle to be created and returns a “nicely” formatted character matrix (see apl.quest/2015/10/ to test your solution and view ours). #APL #PascalsTriangle #TextFormatting

DYNA26 starts today. The team has made the 6 hour journey to New York City and we are almost ready to go! Looking forward to a great day of talks, ideas and APL. #dyna #dyalog #apl #FunctionalProgramming #ArrayLanguages #NYC #timesquare #TechEvent #ProgrammingCommunity #Developers

Learn APL and compete for one of three $100 prizes! There is only one week left to enter the 2026.1 round of the APL Challenge. See challenge.dyalog.com for more information and to enter. #aplchallenge #apl #dyalog #learnapl

#APLQuest 2015-09: Write a function that takes a character vector word as its argument and returns the word's letters juxtaposed (see apl.quest/2015/9/ to test your solution and view ours). #APL #Typoglycemia #WordScrambling

In our latest blog post – www.dyalog.com/blog/2026/04... – Asher continues his exploration into the implications of choosing a flat representation rather than a nested one for your data. #Dyalog #APL #ArrayProgramming

#APLQuest 2015-08: Write a function to process output and change the 13s to 12.99s (see apl.quest/2015/8/ to test your solution and view ours). #APL #Triskaidekaphobia #ArrayTransformation

Meet Brian Becker from Dyalog Ltd, presenting at DYNA26 in New York City on 27 April. With over 50 years of APL experience, Brian has developed tools that help users web-enable applications and explore generative AI. Free to attend. dyna.dyalog.com/speakers/bri... #DYNA #APL #TechConference #NewYork

Brian Becker from Dyalog Ltd will present “Jarvis and AI”, sharing lessons from using AI to build a Jarvis-based web service. DYNA26, New York City, 27 April. Free to attend. dyna.dyalog.com/presentation... #DYNA #APL #TechConference #NewYork

Meet Kyle Croarkin, presenting at DYNA26 in New York City on 27 April. A graduate researcher in NLP and machine learning, Kyle explores APL through graphics and voxel game development. Free to attend. dyna.dyalog.com/speakers/kyl... #DYNA #APL #TechConference #NewYork

Meet Asher Harvey-Smith from Dyalog Ltd, presenting at DYNA26 in New York City on 27 April. Asher brings a fresh perspective to Dyalog APL, from intern to developer influencing its direction. Free to attend. dyna.dyalog.com/speakers/ash... #DYNA #APL #TechConference #NewYork

Holden Hoover will present “Consuming REST APIs in APL with OpenAPI”, using OpenAPI to generate and use API clients in Dyalog APL. DYNA26, New York City, 27 April. Free to attend. dyna.dyalog.com/presentation... #DYNA #APL #TechConference #NewYork

Mark Wolfson and Kori Smith from BIG will present “Parsing User Input for Database Normalisation”, structuring user input for normalised DBs. DYNA26, New York City, 27 April. Free to attend. dyna.dyalog.com/presentation... #DYNA #APL #TechConference #NewYork

Morten Kromberg from Dyalog Ltd will be presenting “Migration Tools for APL Systems”, covering tools to move APL applications to Dyalog APL. One of 11 presentations at DYNA26 in New York City, 27 April. Free to attend. dyna.dyalog.com/presentation... #DYNA #APL #TechConference #NewYork

Meet Holden Hoover from the University of Waterloo, presenting at DYNA26 in New York City on 27 April. A 2024 APL Forge winner, Holden works on generating APL interfaces to REST APIs using OpenAPI. Free to attend. dyna.dyalog.com/speakers/hol... #DYNA #APL #TechConference #NewYork

#APLQuest 2015-07: Write a function to perform case-insensitive membership between two arrays (see apl.quest/2015/7/ to test your solution and view ours). #APL #CaseInsensitive #StringMatching

Rich Park from Dyalog Ltd will be presenting “An APL App End to End”, showing how to build a complete app in Dyalog APL. One of 11 presentations at DYNA26 in New York City, 27 April. Free to attend. dyna.dyalog.com/presentation... #DYNA #APL #TechConference #NewYork

Meet Rich Park from Dyalog Ltd, presenting at DYNA26 in New York City on 27 April. Rich combines a passion for APL and education, creating training materials, tools, and workshops. Free to attend. dyna.dyalog.com/speakers/rich-park/ #DYNA #APL #TechConference #NewYork

Asher Harvey-Smith will present “APL Primitives in the 21st Century”, highlighting enhancements that make code more concise and performant. DYNA26, New York City, 27 April. Free to attend. dyna.dyalog.com/presentations/apl-primitives-in-the-21st-century/ #DYNA #APL #TechConference #NewYork

Learn APL and compete for one of three $100 prizes! There's one month left to enter the 2026.1 round of the APL Challenge. See challenge.dyalog.com for more information and to enter #aplchallenge #apl #dyalog #learnapl

In our latest blog post – www.dyalog.com/blog/2026/04... – Adám introduces an exciting and long-overdue enhancement that will automatically convert all your code into tacit form whenever it is saved #Dyalog #APL

Meet Morten Kromberg from Dyalog Ltd, presenting at DYNA26 in New York City on 27 April. CTO since 2005, Morten helps guide Dyalog’s technical direction and migration from other APL systems. Free to attend. dyna.dyalog.com/speakers/morten-kromberg/ #DYNA #APL #TechConference #NewYork

#APLQuest 2015-06: Write a function that takes, as each of its right and left arguments, a pair of co-ordinates representing diagonally opposite corners of two rectangles and returns a 1 if the rectangles overlap (apl.quest/2015/6/ to test your solution and view ours). #APL #ComputationalGeometry

The programme for DYNA26 is now out dyna.dyalog.com/programme/ This free, one-day, in-person event for existing and potential users of Dyalog is on Mon 27 April 2026 in New York City. Spaces are limited, and these events usually fill up quickly, register now #dyna #dyalog #apl

#APLQuest 2015-05: Write a function that returns the population standard deviation of its numeric array right argument (see apl.quest/2015/5/ to test your solution and view ours). #APL #Statistics #StatisticalAnalysis

ArrayCast goes live in 10 minutes! Episode 122: REPL & IDE Deep Dive Adám Brudzewsky and Conor Hoekstra explore REPLs and IDEs across the array language ecosystem Join live: www.youtube.com/watch?v=kDpF... #ArrayCast #APL #ArrayProgramming #FunctionalProgramming

In our latest blog post – www.dyalog.com/blog/2026/03... – Brian investigates the effect that data structure can have on performance and optimisation by revisiting a challenge from the 2019 APL Problem Solving Competition. #Dyalog #APL #ArrayProgramming #Performance

#APLQuest 2015-04: Write a function that implements progressive dyadic iota (see apl.quest/2015/4/ to test your solution and view ours). #APL #ArraySearching #IndexOf

#APLQuest 2015-03: Write a function that takes an integer right argument and returns a vector of the terms in the Farey sequence of that order (see apl.quest/2015/3/ to test your solution and view ours). #APL #FareySequence #NumberTheory

Registration is now open for DYNA26. This free, one-day, in-person event for existing and potential users of Dyalog will take place on Monday 27 April 2026 in New York City. Spaces are limited, so register now. See dyna.dyalog.com #dyna #dyalog #apl #ArrayProgramming #NYCTech

#APLQuest 2015-02: Write a function that takes a numeric vector and returns the length of the longest streak of positive growth (see apl.quest/2015/2/ to test your solution and view ours). #APL #SequenceAnalysis #Streaks

Learn APL and compete for one of three $100 prizes! There are two months month left to enter the 2026.1 round of the APL Challenge. See challenge.dyalog.com #aplchallenge #apl #dyalog #learnapl

#APLQuest 2015-01: Write a function that takes two character vectors as its left and right arguments and returns 1 if they are anagrams of each other (see apl.quest/2015/1/ to test your solution and view ours). #APL #Anagrams #WordPuzzles

Congratulations Thierry Dussuet, Olivia Weiss, and Nick Winterer, winners of the 2025.4 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

The APL Forge has expanded! New category: submissions that enhance the APL experience without being written in APL - tools, plugins, apps, media and more. Win £2,500, a commercial licence and a trip to present at Dyalog '26. forge.dyalog.com #APL #APLForge

#APLQuest 2014-10: Write a function that returns the greatest percentage month-to-month increase. (see apl.quest/2014/10/ to test your solution and view ours). #APL #DataAnalysis #SalesData

The ArrayCast is back and now it's broadcast live! Join Conor Hoekstra, Adám Brudzewsky, and guests. The next episode, "FIXAPL with Jacob Lockwood", will take place on Monday 16 February at 15:00 UTC – see www.youtube.com/@arraycast/ #APL #ArrayProgramming #ArrayCast

Dyalog's Adám Brudzewsky participated in a discussion about APL on the 1x Developer Podcast (episode 43). The recording is now available to watch at www.youtube.com/watch?v=0_N_... or listen to at open.spotify.com/show/1eXZqdw... #Dyalog #APL #DevPodcast

The 2026.1 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 #aplchallenge #apl #dyalog #learnapl

Call all APLers! Code Golf code.golf supports unrestricted execution and checking for #APL (Dyalog APL). APL is currently listed as experimental. Submit solutions to help move it to the main language list and unlock a leaderboard. #Dyalog #DyalogAPL #CodeGolf

#APLQuest 2014-09: Write a function that calculates the distance (in metres) that a projectile travels, given an initial velocity (in metres per second) and a trajectory in degrees (see apl.quest/2014/9/ to test your solution and view ours). #APL #Physics #Mathematics

#APLQuest 2014-08: Write a function that returns the distance between two points in a space of any number of dimensions (see apl.quest/2014/8/ to test your solution and view ours). #APL #EuclideanDistance #VectorMath

#APLQuest 2014-07: Write a function that takes the diameters of the stationary and mobile circles and returns the number of revolutions the mobile must traverse until the tangent points meet again (see apl.quest/2014/7/ to test your solution and view ours). #APL #CircleGeometry #RotationalMotion

Learn APL and compete for one of three $100 prizes! There's only one week 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