Viewing profile — hhyndman

What a great idea. I am a musician and use an iPad for my scores. It would be wonderful to replace my glasses with a pair that can display the music. I noticed the iron ring on you…

My Roland piano, with weighted keys, has MIDI.

Back in the early 70s, I wrote software for the PDP11/20 (in ASM) to collect data from counters for accelerated particles. I recall handcrafting interrupt service routines to ensur…

An interesting article relating to "operator precedence is broken". https://www.foonathan.net/2017/07/operator-precedence/

APL was the first language I learned in school and I was thrown by the precedence of the mathematical operators, but once the other operators were put in play, it was an incredibly…

Roger was a colleague of mine when I worked at IP Sharp. Lovely guy. My condolences to his family. Rest in peace.

An excellent article. Thank you for your insights. I used to run a software engineering practice and I must admit that almost all of your points resonated with me. I'd like to add …

Back in university (1974), I took a course in AI. The prof wanted us to write a brute-force solution to solve the 8-queens problem -- any language! I wrote the solution in APL in a…

The APL language has this system variable ⎕IO (called QUAD IO -- index origin), which could be set to 0 (for 0-based indexing) or 1 globally in the environment. Also, ⎕IO can be se…

While studying Comp Sci at University of Toronto in the early 70s, I recall the 360/20 was used as a node to connect suburban colleges (Erindale and Scarborough) to the "mainframe"…

I downloaded a very high-resolution version of this map and created a 1m x 1m "poster" in my office. Accompanied with an illuminated magnifying glass, I often take a nice break fro…