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A comment on Boris Cherny: TI-83 Plus Basic Programming Tutorial (2004).

Re:Boris Cherny: TI-83 Plus Basic Programming Tutorial (2004) by submeta on Thursday May 07, 2026 @06:20AM (#48047633)
There‘s HP calculator guys and TI guys. Around the age of 17 I spent lots of time programming my HP28s calculator in a Forth like language that had symbolic mathematics, lots of ideas from Scheme (closures, functions as first class arguments, recursion). It felt like magic dealing with concepts I hadn’t seen in the C compiler on my Amiga or later in Turbo Pascal. But I saw these concepts later in Mathematica and was familiar.

I had programmed games, complex 3d visualisations (super slow but oh well), and was totally fascinated by what this device could do.

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Re:Boris Cherny: TI-83 Plus Basic Programming Tutorial (2004) by faxmeyourcode on Thursday May 07, 2026 @07:15AM (#48048028)
An HP 50g was my calculator of choice, and the whole RPN style really rubbed off on me. Plus it had more advanced symbolic algebra capabilities than a ti83 equivalent. I enjoyed learning common lisp, scheme, racket, etc through high school and college and still am fond of them today because of this calculator.
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Re:Boris Cherny: TI-83 Plus Basic Programming Tutorial (2004) by le-mark on Thursday May 07, 2026 @06:52AM (#48047880)
Most if not all high schools and colleges in the US required TI “graphing” calculators for algebra/trig on up. I don’t know if they still do. I never saw this HP28, sounds awesome!
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Re:Boris Cherny: TI-83 Plus Basic Programming Tutorial (2004) by chainingsolid on Thursday May 07, 2026 @11:21AM (#48050526)
I remember one of my math teachers claiming only TI showed up to the math text book meetings or something like that, so guess what calculator the book recommends...
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Re:Boris Cherny: TI-83 Plus Basic Programming Tutorial (2004) by otabdeveloper4 on Thursday May 07, 2026 @06:48AM (#48047849)
The rest of the world only has Casio, I think.
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Re:Boris Cherny: TI-83 Plus Basic Programming Tutorial (2004) by sceadu on Thursday May 07, 2026 @03:22PM (#48053639)
I'm a TI guy, but really like RPN and there is (was?) an excellent RPN package for the TI-89 https://old.reddit.com/r/calculators/comments/fdytes/lars_fr...
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