The Dyalog Blog

273 blog posts in 35 categories covering APL insights, company news and events, innovative projects, and more.

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⎕io=0 is assumed throughout. A recent Forum post motivated investigations into the progressive index-of functions in the FinnAPL Idiom Library: pix ←... Read
An abstract geometric illustration in blue, orange, and gold tones symbolising structure, symmetry, and logical design — evoking the analytical nature of algorithmic problem solving.
The following are my attempts at the Phase I problems of the 2018 APL Problem Solving Competition. There are not necessarily “right answers” as... Read
Sometimes I want an additional functionality in the IDE. (Are you a RIDE user? We’ll cover that too!) For example, the other day, I was tracing through... Read
The chart above compares the performance of ∘.∧ in Dyalog versions 16.0 and 17.0. The improvement is a factor of 3-4 across the whole range (except at... Read
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Motivation I have been working on the Dyalog APL quicksort implementation. The following programming puzzle arose in the process of doing the QA for this work.... Read
Dyalog Ltd - company logo
⎕io=0 is assumed throughout. The essay talks only about ⍋ but the same ideas apply to ⍒. Background ⍋ has the distinction of being the first (in 1980)... Read
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