Dyalog ’26 starts on Monday 12 October

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Videos

This is our Videos blog, rounding up presentation recordings from Dyalog user meetings, DYNA events, and webinars as they’re released, with commentary and context to help you find the talks most relevant to you. For all our videos, see the Videos Library.

DYNA Fall 2025 – A Review

DYNA Fall 2025 brought together APL enthusiasts, customers, and Dyalog Ltd staff for two days of presentations and workshops in New York City. Attendance... Read

By

Dyalog Ltd

Dyalog ’24 Videos: Week 6 – Remembering the “Old”, Welcoming the “New”

The main theme this week is remembering how we got here – and welcoming a new generation of APL users. There are three talks and a panel discussion... Read

By

Morten Kromberg

Dyalog ’24 Videos: Week 5 – Best Practices

Most of the recordings that we are releasing in week 5 concern “best practices” for the use of APL in large or complex systems. Many of these are... Read

By

Morten Kromberg

Dyalog ’24 Videos: Week 4 – Migrating APL Code, and New GUI Frameworks

The presentations released this week are about APL applications on the move. Some applications are moving from one APL implementation to another, for example... Read

By

Morten Kromberg

Dyalog ’24 Videos: Week 3 – The APL Forge, Education, and Data Science

The recordings released this week focus on activities related to attracting new users to APL. For many years, the APL Problem Solving Competition was a... Read

By

Morten Kromberg

Dyalog ’24 Videos: Week 2 – New Functionality

The recordings released this week focus on active development projects at Dyalog Ltd. The first three presentations describe features that are expected to be... Read

By

Morten Kromberg

Dyalog ’24 Videos: Week 1 – Welcome to the Presentations!

We’ve finished processing the first recordings of the presentations given at Dyalog’24 in Glasgow. The first four are now available to watch, and you... Read

By

Morten Kromberg

The APL Quest Series

It seemed like a normal Friday until mid-afternoon. But on 4 February 2022, I embarked on a journey that, at the time, seemed to stretch impossibly far into... Read

By

Adám Brudzewsky

Dyalog ’23 Videos: Week 8 – Celebrate Solstice with the Last of Our Dyalog ’23 Videos

Whether you are celebrating a winter holiday, looking forward to the days getting longer from tomorrow, or enjoying summer south of the equator, we hope you... Read

By

Morten Kromberg

Dyalog ’23 Videos: Week 7 – Performance and Scaling

Although run-time performance is rarely the most important reason for selecting APL, good performance often becomes important during the lifetime of an... Read

By

Morten Kromberg

Dyalog ’23 Videos: Week 6 – Tools and Services

An increasing number of APL systems serve business logic as services, in addition to providing a user interface. Some recent APL applications have no user... Read

By

Morten Kromberg

Dyalog ’23 Videos: Week 5 – Tools and Interfaces

This week, the focus is on the use of tools and interfaces in applications. Mark Wolfson from BIG integrates data from 1,000 retailers to provide business... Read

By

Morten Kromberg

Dyalog ’23 Videos: Week 4 – Research and Education

I am always thrilled to hear from people who have been able to use APL to gain insight into difficult subjects, or use APL to pass knowledge on to others. A... Read

By

Morten Kromberg

Dyalog ’23 Videos: Week 3 – Dyalog Core Development

This week’s collection consists of presentations by members of the development team, and concentrates on language features and development tools that the... Read

By

Morten Kromberg

Dyalog ’23 Videos: Week 2 – APL Problem Solving Competition

The section that is dedicated to the annual APL Problem Solving Competition is always one of my own favourite parts of a Dyalog user meeting, and the talks by... Read

By

Morten Kromberg

Welcome to the Dyalog ’23 Videos!

Welcome to the 2023 edition of the Dyalog user meeting presentation recordings. This year, we plan to release a few talks each week until the Winter Solstice... Read

By

Morten Kromberg

Dyalog ’20 – Recordings Now Available

We are happy to announce that the full set of recordings from Dyalog ’20 online is now available. So if you missed the all or any of the talks, or would... Read

By

Morten Kromberg

Warming Up to Dyalog ’20 – Final Dyalog ’19 Video

Three weeks from today, Gitte Christensen and I will be opening the 2020 Dyalog user meeting. Like so many similar gatherings, we are moving online; this... Read

By

Morten Kromberg

Dyalog ’19 Videos: Week 10

The release of the final set of videos from the Dyalog ’19 user meeting in Elsinore slipped into 2020, thus providing me with a perfect opportunity to... Read

By

Morten Kromberg

Dyalog ’19 Videos: Week 9

Depending on which day you decide to watch this recording, you may get a different answer from the one that Richard did as he answered his own question... Read

By

Morten Kromberg

Dyalog ’19 Videos: Week 8

When Aaron Hsu was at Dyalog ’19 in Elsinore, he was preparing the defence of his PhD Thesis on A Data Parallel Compiler Hosted on the GPU. In his talk... Read

By

Morten Kromberg

Dyalog ’19 Videos: Week 7

Week 7 features talks by two recent additions to the Dyalog team. Richard Park joined Dyalog a year ago, and his primary focus is the production of new... Read

By

Morten Kromberg

Dyalog ’19 Videos: Week 6

Scrinium is a portfolio management system that can handle a comprehensive range of financial assets, collect them into “portfolios”, and compute... Read

By

Morten Kromberg

Dyalog ’19 Videos: Week 5

In week 5 of the Dyalog ’19 videos, Francesco Garue tells how, after APL Italiana was acquired by SimCorp and became SimCorp Italiana, the two development... Read

By

Morten Kromberg

Dyalog ’19 Videos: Week 4

Welcome to week 4 of the Dyalog ’19 recordings! This week, Tommy Johannesen of Jersie Data tells us about an interesting application that he has written... Read

By

Morten Kromberg

Dyalog ’19 Videos: Week 3

In the third week of Dyalog ’19 recordings, Stig Nielsen from SimCorp A/S talks about recent work to turn a very large body of APL code, originally... Read

By

Morten Kromberg

Dyalog ’19 Videos: Week 2

Welcome to the second week of recordings from Dyalog ’19 in Elsinore! This week we are featuring three presentations about work that is either already... Read

By

Morten Kromberg

Welcome to the Dyalog ’19 Videos!

It is still true that most APL users live north of the equator, which means that at this time of year the sun is below the horizon more than half the time.... Read

By

Morten Kromberg

Dyalog ’18 Videos, Final Week

Welcome to the eighth – and final – week of recordings from the Dyalog User Meeting in Belfast! I’d like to take this opportunity to thank all the... Read

By

Morten Kromberg

Dyalog ’18 Videos, Week 7

Our stated goal has been to provide variety each week, and I’m happy to say that I have not been able to find any kind of theme in this penultimate set... Read

By

Morten Kromberg

Dyalog ’18 Videos, Week 6

Happy New Year – and Welcome to the 6th week of Dyalog ’18 video releases! If you enjoy geometry, 2019 starts with a couple of real treats; one which... Read

By

Morten Kromberg

Dyalog ’18 Videos, Week 5

We are releasing four talks this week from Dyalog ’18 in Belfast. Three of them focus on techniques for deploying APL applications across all the... Read

By

Morten Kromberg

Dyalog ’18 Videos, Week 4

This week is mostly a deep dive into the new world of storing source code in text files rather than workspaces and other “binary” formats. However,... Read

By

Morten Kromberg

Dyalog ’18 Videos, Week 3

The four presentations from Dyalog’18 that we are releasing this week address both the visible (user interface) and invisible (performance) parts of... Read

By

Morten Kromberg

Dyalog ’18 Videos, Week 2

Each week until early January, we will be releasing a selection of recordings of presentations from Dyalog’18, which was held in Belfast at the end of... Read

By

Morten Kromberg

Welcome to the Dyalog ’18 Videos!

Three weeks have gone by since we waved goodbye to the last Dyalog ’18 delegates in Belfast. We’ve had time to catch up on sleep, half of us have... Read

By

Morten Kromberg

Response to Feedback on Cut, Under and Merge

At Dyalog ’15 John Scholes and I presented proposals for future operators cut, under, and merge. Following the release of the video of this presentation,... Read

By

Roger Hui

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