#hpcalc — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #hpcalc, aggregated by home.social.
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@moira YESSS! They were my favorites also, especially the 9810 (the one in the middle), which I had previously encountered some 40 years ago, doing some surveying stuff during my military service, in a land far far away. It was obsolete even then, but as an HP calculator fan since my teen years, I was just blown away by this thing.Very nice to see it again.
I wish there was more HP stuff at VCFPNW. Guess I need to bring some of mine next year!
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Moravia (the current owner of the HP calculator IP) has announced they'll be making a Collector's Edition of the 16C RPN programmer's calculator next year:
https://youtu.be/vwgQu2s7rxY?t=1185
HP made dozens of scientific and business calculators over the years, but they only ever made one programmer's calculator, so I don't expect this one to stick around for very long.
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From the 70's, Shanks' SQUFOF algorithm for prime factorising using square forms, with a mention of the HP-65...
"""
...to prove this I had only a hand-held HP-65 with its very small memory (100 steps in the program). Obviously, one cannot put the huge BRIMOR on such a machine. But one can put on the simple algorithm...
... factor the 19-digit N₀ as
(22) N₀ = 139001459 · 8294312261
even though the HP-65 only computes with 10-digit numbers.
"""