Recreational
This category is where APL gets playful: Advent of Code solutions, performance deep dives into puzzles like Boggle, and our long-running tradition of April Fools’ posts, from fictional system functions to an AI that “helpfully” rewrites all your code into unreadable tacit form. If a post exists purely because it was fun to write, it lives here.
- In: Recreational
Advent of Code is an annual challenge in which a new programming puzzle is released every day for the first 12 days of December. We always see some great... Read
- In: Recreational
Although the core language primitives (also known as squiggles) are closest to our hearts, we spend a lot of time creating interfaces to external components... Read
- In: Recreational
Dyalog version 18.0, released in June 2020, introduced the Case Convert system function ⎕C. It was a replacement for the long-lived (since version 15.0, from... Read
- In: Recreational
Traditionally, the set of monadic reversing or reflecting primitives, Reverse-First (⊖), Transpose (⍉), and Reverse (⌽) apply to entire arrays and are... Read
- In: Recreational
During the recent APL Seeds ’22 meeting, it was suggested that we introduce keywords that could be used as an alternative to APL symbols. Several... Read
- In: Recreational
At Dyalog we have long striven for both correctness and high performance in our implementation. However, our views on this matter have recently undergone an... Read
- In: Musings, Recreational
Friday Afternoon It’s something of a custom in Dyalog to send a “fun” e-mail to the group on Friday afternoons. My gambit for this past... Read
- In: Algorithms, Recreational
In the 2016 Year Game, the task was to generate the numbers 0 to 100 using APL primitives and the digits 2 0 1 6 in that order. For example, 20=16 ×2016... Read
Finally, the last accessory I ordered for my Raspberry Pi Zero (that’s the little red thing behind my keyboard) has arrived – an Acer 43″... Read
- In: Recreational
Our 2016 Year Game was launched in January 2016 and ran until the end of the year. The idea was simple – to find APL expressions involving exactly the digits... Read
- In: Recreational
by the Dyalog Duck As the party behind Dyalog’s Twitter account I often search our feed for #APL or just APL to see if anyone is talking about us or APL... Read
- In: Recreational
In the Beginning ⌊ floor ⌈ ceiling ⍟ log ⌊ and ⌈ were punnish when the notation was introduced in 1962. They have long since gone mainstream, used... Read
- In: Recreational
One of many things I like about APL is that it’s fun to use for recreational computing. I will frequently happen upon an interesting problem, puzzle, or... Read
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