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To stay true to the endless rivalry, here is the HP calculator resources:

https://www.hpcalc.org

Both the TI and HP were tremendously good entry points into programming and, especially for kids who had little interest in or no access to computers.



HP RPL is one serious gem. HP48 series had lambda arrow syntax in 1990.

    << a -> << a a + >> >>
All in your jeans pocket.


I was wondering when I'd find this comment :) I was in high school early in the early 90s. I programmed a 2-dice game drinking game on a HP48.


I bet most fans of stack-based languages got their starts on HP calcs.




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