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APL Forge: 2024 Winner Announced

2024 saw the first iteration of a new competition, the APL Forge. The APL Forge is intended as a catalyst to grow the next generation of APL-based applications and tools by inspiring people with good ideas to use APL to turn those ideas into reality. This annual competition asks individuals, groups, or even companies, to … Read
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APL Forge

Since 2008, Dyalog Ltd has hosted the APL Problem Solving Competition. Whilst this yielded some great winners, several of whom have subsequently held APL internships and/or been employed as full-time APLers, we feel that it is time to try something new. The APL Problem Solving Competition was designed to provide a testing ground for people … Read
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Dyalog Ltd Announces Dyalog Version 19.0

Dyalog version 19.0 is now available on all platforms. The full list of supported platforms is currently: Microsoft Windows: Windows 10 onwards (Windows Server 2016 onwards) IBM AIX: AIX 7.2 SP2 TL2 onwards with a POWER9 chip or higher Linux x86/x86_64: Built on Ubuntu 20.04 but works on most recent distributions macOS (Mac must have … Read
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APL Challenge

Since 2008, Dyalog Ltd has hosted the APL Problem Solving Competition. Whilst this yielded some great winners, several of whom have subsequently held APL internships and/or been employed as full-time APLers, we feel that it is time to try something new. The APL Problem Solving Competition was designed to provide a testing ground for people … Read
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Changes to Dyalog Licence Structure and Pricing

  Our new licence structure took effect on 1 January 2024; this article describes the changes from the previous structure.   Single Commercial Developer Licence Type We have simplified the licence structure for commercial developer licences and now offer a single, multi-platform, developer licence. This includes: Supported platforms: Microsoft Windows, macOS, and Linux Widths: 32-bit and … Read
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Changes to Dyalog Licence Structure and Pricing

It is more than 15 years since Dyalog Ltd introduced the 64-bit version of Dyalog. Since then, we have provided and supported both 64-bit and 32-bit versions, but as time has progressed we have found it more and more difficult to maintain the same level of functionality for both versions as the environment for 32-bit … Read
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Meet The 2023 APL Problem Solving Competition Winners

The 15th annual APL Problem Solving Competition winners were announced on 21 August 2023. Read about the experiences of the main prize winners and find out a bit more about them in their own words below. Phase I of this year’s contest had the familiar format of 10 one-line solutions, with 10 participation prizes being … Read
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2023 APL Problem Solving Competition Winners

The judges have identified the following winning entries: Phase II – Grand Prize Winner: Andrea Piseri, Università degli Studi di Milano (University of Milan), Italy receives a cash prize of $2,500 USD and an invitation to present his winning work at Dyalog ’23 in Elsinore, Denmark Phase II – Second Place: Rory Kemp (University of … Read
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Register now for Dyalog '23

Dyalog ’23 will take place in Elsinore, Denmark, from Sunday 15 to Thursday 19 October 2023 (both days inclusive). Registration for Dyalog ’23 is now open; register now and take advantage of the 10% Early Bird discount (the Early Bird discount expires Sunday 6 August 2023 23:59:59 UTC). The workshops on offer this year provide … Read
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2023 APL Problem Solving Competition Announced by Dyalog Ltd

Dyalog Ltd invites you to put your programming and problem-solving skills to the test by using any APL system to develop solutions to ten questions and solve a series of problems. This is a contest for people who love a challenge and learning new things for fun, with the added bonus that if you are … Read
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Meet The 2022 APL Problem Solving Competition Winners

The 14th annual APL Problem Solving Competition winners were announced on 22 August 2021. Read about the experiences of the main prize winners and find out a bit more about them in their own words below. Phase I of this year’s contest had the familiar format of 10 one-line solutions, with 10 prizes being awarded … Read
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2022 APL Problem Solving Competition Winners

The judges have identified the following winning entries: Phase II – Grand Prize Winner: Tzu-Ching Lee – National Tsing Hua University, Taiwan receives a cash prize of $2,500 USD and an invitation to present their winning work at Dyalog ’22 in Olhão, Portugal Phase II – Second Place: Rory Kemp – Edinburgh Academy, U.K. receives … Read
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Dyalog Ltd Announces Dyalog Version 18.2

Dyalog version 18.2 is now available on all platforms. The full list of supported platforms is currently: Microsoft Windows (from Windows 8.1 onwards (Windows Server 2012 onwards) IBM AIX (p9, AIX 7.2 SP2 TL2 onwards) x86_64 Linux (built on Ubuntu 18.04 but works on most recent distributions – see this forum post for more details) … Read
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2022 APL Problem Solving Competition Announced by Dyalog Ltd

Dyalog Ltd invites you to put your programming and problem-solving skills to the test by using any APL system to develop solutions to ten questions and solve a series of problems. This is a contest for people who love a challenge and learning new things for fun, with the added bonus that if you are … Read
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Roger Hui

We are very sad to pass on the news that Roger Hui (Wikipedia, APL Wiki) passed away peacefully on Saturday October 16th, with his wife Stella and his children Nicholas and Rachel at his side. Roger has been an integral part of the APL and array language community since the 1970s, and Dyalog had the … Read
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Meet The 2021 APL Problem Solving Competition Winners

The 13th annual APL Problem Solving Competition winners were announced on 20 August 2021. Read about their experiences with APL and find out a bit more about them in their own words below. Phase I of this year’s contest had the familiar format of 10 one-line solutions, with 10 participation prizes being awarded to the … Read
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2021 APL Problem Solving Competition Winners

The judges have identified the following winning entries: Phase II – Grand Prize Winner: Dzintars Klušs (Riga State Gymnasium No. 1, Latvia) receives a cash prize of $2,500 USD, an invitation to present his winning work at Dyalog ’21 and a delegate package registration for Dyalog ’22 in Olhão, Portugal Phase II – Second Place: … Read
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2021 APL Problem Solving Competition Announced by Dyalog Ltd

Dyalog Ltd invites students worldwide to put their programming and problem-solving skills to the test by using any APL system to develop solutions to ten questions and solve a series of problems. This is a contest for people who love a challenge and learning new things for fun, with the added bonus that you can … Read
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Introducing Dyalog Version 18.0 Issue 3

Dyalog version 18.0 issue 3 is now available for download on all supported platforms: DSS subscribers have already been sent an email notification from DSS Update with download details Non-commercial users can obtain the latest version from https://www.dyalog.com//downloads/ Dyalog version 18.0 issue 3 includes all the fixes that have been applied to version 18.0 since … Read
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Meet The 2020 APL Problem Solving Competition Winners

The 12th annual APL Problem Solving Competition winners were announced on 21 August 2020. Read about their experiences with APL and find out a bit more about them in their own words below. Phase I of this year’s contest had the familiar format of 10 one-line solutions, with 10 participation prizes being awarded to the … Read
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2020 APL Problem Solving Competition Winners

The judges have identified the following winning entries: Phase II – Grand Prize Winner: Andrii Makukha (University of Hong Kong, China) receives a cash prize of $2,500 USD, an invitation to present his winning work at Dyalog ’20 and a delegate package registration for Dyalog ’21 in Olhão, Portugal Phase II – Second Place: Dzintars … Read
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Dyalog '20/Dyalog '21

<!– –> Due to the Covid-19 pandemic’s lingering restrictions on travel and continued social distancing, we’ve made the difficult decision to cancel Dyalog ’20, originally scheduled to take place in Portugal in October 2020. Whilst we appreciate that this is disappointing, we hope you can understand the steps we’re taking to help keep our staff … Read
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Dyalog Ltd Announces Dyalog Version 18.0

Dyalog version 18.0 is now available on all platforms. The full list of supported platforms is currently: Microsoft Windows (from Windows 8.1 onwards (Windows Server 2012 onwards) IBM AIX (p8, AIX 7.2 SP2 TL2 onwards) x86_64 Linux (built on Ubuntu 18.04 but works on most recent distributions – see this forum post for more details) … Read
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2020 APL Problem Solving Competition Announced by Dyalog Ltd

Dyalog Ltd invites students worldwide to put their programming and problem-solving skills to the test by using any APL system to develop solutions to ten questions and solve a series of problems. This is a contest for people who love a challenge and learning new things for fun, with the added bonus that you can … Read
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Dyalog Ltd Announces Dyalog Version 17.1

Dyalog version 17.1 is now available on all platforms. The full list of supported platforms is currently: Microsoft Windows (from Windows 7 onwards (Windows Server 2008 onwards), Microsoft.NET bridge requires .NET 4.0 or later) IBM AIX (7.2 with p7 or higher) x86_64 Linux (built on Debian 8 but works on most recent distributions – see … Read
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2019 APL Problem Solving Competition Winners

The 11th annual APL Problem Solving Competition winners were announced on 5 August 2019. Read about their experiences with APL and find out a bit more about them in their own words below. Phase I of this year’s contest had the familiar format of 10 one-line solutions, with 10 participation prizes being awarded to the … Read
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Dyalog '19: Preliminary Programme Now Available

Reminder: The 10% Early Bird discount expires Saturday 10 August 2019 at 23:59:59 UTC. Nearly all of the Dyalog Team will be at Dyalog ’19 in Elsinore – not just to talk about our own work, but equally importantly to listen to you, in presentations, at the dinner table and in the bar. If you’d … Read
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2019 APL Problem Solving Competition Winners

Pending proof of student status, the judges have identified the following winning entries: Phase II – Grand Prize Winner: Jamin Wu (Monash University, Australia) receives a cash prize of $2,500 USD and an invitation to present his winning work at Dyalog ’19 in Elsinore, Denmark Phase II – Second Place: Rasmus Précenth (Uppsala University, Sweden) … Read
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Register now for Dyalog '19

Dyalog ’19 will take place in Elsinore, Denmark, from Sunday 8 September to Thursday 12 September 2019 (both days inclusive). Registration for Dyalog ’19 is now open; register now and take advantage of the 10% Early Bird discount (the Early Bird discount expires 10 August 2018 23:59:59 UTC). The workshops on offer this year provide … Read
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2019 APL Problem Solving Competition Announced by Dyalog Ltd

Dyalog Ltd invites students worldwide to put their programming and problem-solving skills to the test by using any APL system to develop solutions to ten questions and solve a series of problems. This is a contest for people who love a challenge and learning new things for fun, with the added bonus that you can … Read
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John Scholes

We are very sad to inform you all that our beloved Genius, Gentleman and Mischievous Schoolboy John Scholes passed away in the early hours of Monday February 18th. John’s technical and personal contributions to Dyalog over the course of four decades can hardly be exaggerated, and we are devastated that he won’t be coming in … Read
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2018 APL Problem Solving Competition Winners

The 10th annual APL Problem Solving Competition winners were announced on 3 September 2018. Read about their experiences with APL and find out a bit more about them in their own words below. Phase I of this year’s contest had the familiar format of 10 one-line solutions, with 10 participation prizes being awarded to the … Read
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Winners Announced for the 2018 APL Programming Contest

Pending proof of student status, the judges have identified the following winning entries: Phase II – Grand Prize Winner: Alve Björk (Uppsala University, Sweden) receives a cash prize of $2,500 USD and an invitation to present his winning work at Dyalog ’18 in Belfast, Northern Ireland Phase II – Second Place: Lynn Van Hauwe (University … Read
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Dyalog '18: Preliminary Programme Now Available

Reminder: The 10% Early Bird discount expires Sunday 12 August 2018 at 23:59 UTC/GMT. The preliminary programme for Dyalog ’18 is now available at https://www.dyalog.com/user-meetings/dyalog18/presentations.htm. The programme is still evolving and you can follow our progress on this webpage as additional speakers, titles and abstracts are confirmed. There will be a large contingent from Team … Read
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Dyalog Ltd Announces Dyalog Version 17.0

In accordance with tradition, Dyalog Ltd is marking the beginning of summer with a new release of Dyalog! Dyalog version 17.0 is now available on all platforms. The full list of supported platforms is currently: Microsoft Windows (from Windows 7 onwards (Windows Server 2008 onwards), Microsoft.NET bridge requires .NET 4.0 or later) IBM AIX (7.2 … Read
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Register now for Dyalog '18

Dyalog ’18 will take place in Belfast, Northern Ireland, from Sunday 28 October to Thursday 1 November 2017 (both days inclusive). This year there are two adjoining venues; workshops and lunch will be in Hilton Belfast and presentations will be in Belfast Waterfront . The venues are located on the Lagan river and are a … Read
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2018 APL Problem Solving Competition Announced by Dyalog Ltd

Dyalog Ltd invites students worldwide to put their programming and problem-solving skills to the test by using any APL system to develop solutions to ten questions and solve a series of problems. This is a contest for people who love a challenge and learning new things for fun, with the added bonus that you can … Read
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Results of Code Golf Tournament

The first three weeks of October saw Dyalog co-hosting a *Code Golf Tournament with Optima Systems. The challenge was to complete nine “holes”, each of which required a solution to a different puzzle. Puzzle descriptions After a fiercely fought contest the top ten golfers were revealed to be: 1 Nikolay Georgiev Nikolov 143 2 Stefano … Read
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APL Code Golf Competition

Dyalog Ltd and Optima Systems are co-hosting a *Code Golf Tournament. Launching on 1 October, the tournament will test your code golfing skills – prizes are available for those who can strip their code back to the bare minumum. For the rules of the tournament and to enter, go to https://apl.codegolf.co.uk The tournament runs until … Read
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2017 APL Programming Contest Winners

The 9th annual global programming contest winners were announced on 1 August 2017. Read about their experiences with APL and find out a bit more about them in their own words below. Phase I of this year’s contest had the familiar format of 10 one-line solutions, with 15 participation prizes being awarded to the submissions … Read
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Winners Announced for the 2017 APL Programming Contest

Pending proof of student status, the judges have identified the following winning entries: Phase II – Grand Prize Winner: Kostas Blekos (Panepistimion Patron, Greece) receives a cash prize of $2,500 USD and an invitation to present his winning work at Dyalog ’17 in Denmark Phase II – Second Place: Douglas Patz (Agile Learning Center, New … Read
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Dyalog Ltd Announces Dyalog Version 16.0

>Dyalog version 17.0 is now available >on all supported platforms. Read more about Dyalog version 16.0: Highlights Performance enhancements Full documentation set… Read
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Summer issue of DYALOGue available

The Summer 2017 issue of DYALOGue – our electronic newsletter – is now available. In this e-News we look at some highlights of Dyalog version 16.0 and anticipate Dyalog ’17 in Elsinore, Demark, in September. There’s also a recap of the user meetings that we have presented at over the last few months, a proper … Read
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Register now for Dyalog '17

Dyalog ’17 will take place in Elsinore, Denmark, from Sunday 10 September to Thursday 14 September 2017 (both days inclusive). Our venue this year is the Konventum (formerly known as known as LO-skolen), a modern conference centre that has been awarded 4 stars for its conference facilities. Registration for Dyalog ’17 is now open; register … Read
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Dyalog Webinars

Dyalog are launching a series of live webinars to share news and information about our products with our users. These webinars will be streamed on https://dyalog.tv, typically on Thursdays, starting at 16:00 in the UK (during summer months 15:00 UTC, else 16:00). The timing is intended to allow as many as possible to follow the … Read
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2017 Student Competition Announced by Dyalog Ltd

Dyalog Ltd invites students worldwide to put their programming and problem-solving skills to the test by using any APL system to develop solutions to ten questions and solve a series of problems. This is a contest for people who love a challenge and learning new things for fun, with the added bonus that you can … Read
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Geoff Streeter – 40 Years with Dyalog

A personal account by John Scholes As a relatively new arrival to Dyalog, I have been working with Geoff for only 35 of his 40 years in the company, although we met earlier when we both worked for Atkins Computing in the early 1970s. Our in-depth collaboration started in the autumn of 1981, when we … Read
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2016 APL Programming Contest Winners

The 8th annual global programming contest winners were announced on 31 August 2016. Read about their experiences with APL and find out a bit more about them in their own words below. Phase I of this year’s contest had the familiar format of 10 one-line solutions, with 15 participation prizes being awarded to the submissions … Read
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PRESS RELEASE: APL Programming Language Celebrates 50 Years

Dyalog Ltd – the world’s leading provider of the APL language – will host a celebration of the 50th anniversary of APL (A Programming Language) during Dyalog ’16, its annual global user meeting in Glasgow. Some of the most innovative and exciting new applications developed using Dyalog APL will be showcased live at the event, … Read
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Winners Announced for the 2016 APL Programming Contest

Pending proof of student status, the judges have identified the following winning entries:   Phase II: Bioinformatics category Grand prize winner Marinus Oosters (Universiteit Utrecht, The Netherlands)receives a cash prize of $2,000 USD and an invitation to present his winning work at Dyalog ’16 in Scotland Runner-Up Louis de Forcrand (Ecole Moser, Switzerland)receives a cash … Read
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Summer issue of DYALOGue available

The Summer 2016 issue of DYALOGue – our electronic newsletter – is now available. In this e-News we look at some highlights of Dyalog version 15.0 and anticipate Dyalog ’16 in Glasgow in October. There’s also a recap of the user meetings that Gitte and Morten have attended/presented at over the last few months, a … Read
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Dyalog Ltd Announces Dyalog Version 15.0

In accordance with tradition, Dyalog is marking the beginning of summer with a new release of Dyalog APL – and this time we are celebrating with a brand new icon! As of June 30th 2016, Dyalog APL version 15.0 is available on all platforms. The full list of supported platforms is currently: Microsoft Windows (from … Read
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Register now for Dyalog '16

Dyalog ’16 will take place in Glasgow, Scotland from Sunday 9th October to Thursday 13th October 2015 (both days inclusive). Our venue this year is the Golden Jubilee Conference Hotel (known until January 2016 as the Beardmore Hotel and Conference Centre), which leads the way in combining the specialist services of an international conference centre … Read
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2016 Student Competition Announced by Dyalog Ltd

Dyalog Ltd invites students worldwide to put their programming and problem-solving skills to the test by using any APL system to develop solutions to ten questions and solve a series of problems. This is a contest for people who love a challenge and learning new things for fun, with the added bonus that you can … Read
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Dyalog 15.0 Now in Beta Testing

Dyalog 15.0 has now been released for Beta testing on Microsoft Windows and Mac OS; Linux will follow shortly. Highlights of the latest version of Dyalog include: Very significant performance improvements New cross-platform native file functions Additional I-beams Enhancements to the .NET interface Microsoft Windows installation without needing administrator privileges Integration with the Microsoft Windows … Read
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Spring issue of DYALOGue available

The Spring 2016 issue of DYALOGue – our electronic newsletter – is now available. In this e-News we look at a change of roles within the company, Gianfranco Alongi presents his thoughts on becoming a better programmer and Michel Godron explains his work using Dyalog to study the distribution of vegetation in Africa. All that … Read
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Functional Conf videos available to view

Functional Conf is designed to bring the growing community of functional programmers together under one roof. At Functional Conf: participants can understand the fundamentals concepts behind functional programming they can learn how others are using functional programming to solve real world problems practitioners can meet peers and exchange their experience experts can share their expertise … Read
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2015 APL Programming Contest Winners

The 7th Annual global programming contest winners were announced on 10 August 2015. Below you can find out a bit more about them, and hear about how they got interested – and participated – in the contest.   The Grand Prize winner is Arianna Locatelli who receives a cash prize of $2,500 USD and an invitation … Read
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Winners Announced for the 2015 APL Programming Contest

Pending proof of student status, the judges have identified the following as winning entries:   Grand prize winner: Arianna Locatelli (secondary school, Italy) receives cash prize of $2,500 USD and an invitation to present her winning work at Dyalog ’15 in Sicily   Second prize winner: Joshua David (University of Scranton, U.S.A.) receives cash prize … Read
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Summer issue of DYALOGue available

The Summer 2015 issue of DYALOGue – our electronic newsletter – is now available. In this e-News we summarise Dyalog version 14.1, Morten presents his thoughts on an increasing receptiveness to APL and we take a look at how COSMOS uses Dyalog to explore big data. We also present our latest case study – ” … Read
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Dyalog Ltd Announces Dyalog Version 14.1

Dyalog Ltd has released the latest version of its software development environment – Dyalog 14.1 – the first version that runs on Mac OS (Yosemite or later versions). Mac OS joins the growing family of supported platforms, which includes Microsoft Windows, IBM AIX, Intel-based Linux and the most recent addition, Linux on the Raspberry Pi, … Read
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Register now for Dyalog '15

Dyalog ’15 will take place in Sicily from Sunday 6th September to Thursday 10th September 2015 (both days inclusive). Our venue this year is the Atahotel Naxos Beach, a purpose-built hotel and conference centre located on the east coast of Sicily. Registration for Dyalog ’15 is now open; register now and take advantage of the … Read
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Announcing the Availability of APLcloud

Working in partnership with Automatonics Inc., a USA corporation specialising in Dyalog and web hosting, APLcloud has been developed with a primary focus on APL as a Service through APLcloud.com. Leveraging the Amazon AWS global data centres, APLcloud offers commercial-grade Dyalog servers and MiServer web hosting services to rent on a pay-as-you-go basis. Engineered from … Read
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2015 Student Competition Announced by Dyalog Ltd

Dyalog Ltd invites students worldwide to put their programming and problem-solving skills to the test by using any APL system to develop solutions to ten questions and solve a series of problems. This is a contest for people who love a challenge and learning new things for fun, with the added bonus that you can … Read
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Spring issue of DYALOGue available

The Spring 2015 issue of DYALOGue – our electronic newsletter – is now available. In this e-News we give a brief preview of Dyalog version 14.1 and give initial details about Dyalog ’15 and DYNA15. We also present our latest case study – “from logistical nightmare to peace of mind with Dyalog”. Read all about … Read
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2014 APL Programming Contest Winners

The APL Programming Contest this year had an impressive 710 registrations, so competition was fierce. In addition to the three top prizes, a number of consolation prizes have been awarded. It gives us great pleasure to present the Grand Prize winner – Emil Bremer Orloff. Emil is a 24-year-old student at Aarhus University in Denmark. … Read
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Winners Announced for the 2014 APL Programming Contest

There were an unprecedented number of submissions for the 2014 International APL Problem Solving Competition. Pending proof of student status, the judges have identified the following as winning entries:   Grand prize winner: Emil Bremer Orloff (Aarhus Universitet, Denmark)receives cash prize of $2,500 USD and an invitation to present his winning work at Dyalog’14 in … Read
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Summer issue of DYALOGue available

The Summer 2014 issue of DYALOGue – our electronic newsletter – is now available. In this e-News we describe the recent release of Dyalog version 14, start the countdown to our next user meeting, Dyalog ’14 and introduce the new website and social media strategy. There are also two case studies of Dyalog in action … Read
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Dyalog Ltd Announces Dyalog Version 14.0

Dyalog Ltd announces the latest version of its software development environment – Dyalog 14.0. One of the key benefits of Version 14.0 is that it will enable subject matter experts to have parallel computing at their fingertips. This release follows on the heels of Dyalog becoming available for the Raspberry Pi and a technology partnership … Read
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Invitation to a Dyalog Seminar in the USA

The release of Dyalog Version 14.0 is imminent and this will be the most significant release for several years. Expect faster development, faster execution, less storage consumption and network traffic and integration with many new external tools that will increase your productivity! In the next year or two you can expect to see the Dyalog … Read
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Register now for Dyalog '14

Dyalog ’14 will take place in Eastbourne, U.K., from Sunday 21st September to Thursday 25th September 2014 (both days inclusive). Our venue this year is the Eastbourne Centre, a conference facility and hotel situated on the seafront in Eastbourne.   Registration for Dyalog ’14 is now open; register now and take advantage of the Early … Read
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2014 Student Competition Announced by Dyalog Ltd

Dyalog Ltd invites students worldwide to put their programming and problem-solving skills to the test by using any APL system to develop solutions to ten questions and solve a series of problems. This is a contest for people who love a challenge and learning new things for fun, with the added bonus that you can … Read
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By other authors

What's Your Favourite Beautiful Squiggle?

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What's Your Favourite Beautiful Squiggle?

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News and Recommendations Regarding Dyalog Versions 17.1, 18.0 and 18.1

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News and Recommendations Regarding Dyalog Versions 17.1, 18.0 and 18.1

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Meet The 2021 APL Problem Solving Competition Winners

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Meet The 2021 APL Problem Solving Competition Winners

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Stackless Traversal

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Stackless Traversal

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The Tool of Thought for Software Solutions

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Technical advice and assistance on all aspects of Dyalog usage is available by e-mail (support@dyalog.com) and/or telephone (+44 1256 830030 – limited to U.K. office hours). Limited advice on design and coding is available, but is not intended to replace the use of the printed and on-line documentation. Except when reporting an issue with the software, users are encouraged to seek advice from the user community via the Dyalog Forum (reading the content of the forums does not require membership).

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