DYNA26: 27 April 2026. More info

The Dyalog Blog

275 blog posts in 36 categories covering APL insights, company news and events, innovative projects, and more.

Playful abstract collage of orange and lavender arrows, triangles and blocks on a dark background, suggesting APL wordplay.
In the Beginning ⌊ floor ⌈ ceiling ⍟ log ⌊ and ⌈ were punnish when the notation was introduced in 1962. They have long since gone mainstream, used… Read
Hyvää päivää (good day) On the last Thursday of November, I had the privilege to meet with with some members of the Finnish APL community in at the Vatt… Read
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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
The November cycle of APL User Meetings is kicking off; the SWEDAPL meeting in Malmö was first this year, holding a meeting at the top of the famous Turning… Read
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Over the years, I have become more and more reluctant to write code without good regression tests – 35 years of software development have taught me that… Read
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The monadic operator ⍨ is defined and modeled as follows: f⍨ ⍵ ←→ ⍵ f ⍵ ⍺ f⍨ ⍵ ←→ ⍵ f ⍺ {⍺←⍵ ⋄ ⍵ ⍺⍺ ⍺} Reflex Some… Read
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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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