Musings
This category collects personal thoughts and opinions from Team Dyalog: programming puzzles solved for the fun of it, mathematical proofs worked out in APL, performance investigations sparked by a colleague’s problem, and reflections on the language, teaching, and the craft of programming itself.
- In: Dyalog '18, Events, Musings
Making Lasagne Participants in the SA2 Performance Tuning workshop at the Dyalog ’18 User Meeting were encouraged to bring their own problems for the group... 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, APL Language, Musings
⎕io←0 throughout. I was re-reading A Mathematician’s Apology before recommending it to Suki Tekverk, our summer intern, and came across a statement... Read
For-loops Given an initial state defined by a number of variables, a for-loop iterates through its argument array modifying the state. A←... ⋄... Read
- In: APL Language, Musings
I’ve taken to commenting the closing brace of my inner dfns with a home-grown type notation pinched from the Functional Programming community: dref←{... Read
- In: APL Language, Musings
This post contains comments to John Scholes’ post on name colouring; please continue to post any further comments with the original post. This is a very... Read
- In: APL Language, Musings
APL is sometimes criticised because expressions that include names cannot, in general, be parsed without knowing whether the names represent functions or... Read
- In: APL Language, Musings
Going back a long way when John Scholes and I were writing version 0 of Dyalog there was a big discussion about whether functions knew their own names. This... Read
- In: APL Language, Musings
“We do not realize what tremendous power the structure of an habitual language has. It is not an exaggeration to say that it enslaves us through the... Read
- In: APL Language, Musings
What was Ken Iverson’s favourite APL expression? I don’t know that he had one and if he had I don’t know what it was, but if I have to guess …... Read
- In: APL Language, Musings
In one man’s humble opinion, reduction (⌿) is the Queen of Operators. Each (¨) comes a close second, but doesn’t get the cigar because each can... Read
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