Stefan Wolfrum 
Pssst … It's solving a #Sudoku! 😎 Here's the code, for the curious: https://hp-15c-simulator.de/programs/Sudoku%20Solver.htm #hp15c #hpcalculator #programmablecalculator #retrocomputing #moravia #hp #hewlettpackard #calculator #calculators #pocketcalculator
Ahhh, sucessfully updated the #firmware of my HP-15C CE #calculator! Checksum/Date before: 9090h/2023-01-05. Checksum/Date afterwards: 0A0Ah/2024-06-03. ✅ – HP (Moravia) addressed several bugs (including those in the hidden HP-16C mode) and worked on the keyboard debouncing. – Will test now … #Calculators #PocketCalculator #HewlettPackard #ScientificCalculators #hp15c
Cardboard Robot
JakobT@michaelormsby
Nice! Still keeping my old #HP15C that has served me faithfully since 1988. Don't use it anymore, but only because I have an app on my phone that emulates it 100%. I only miss the feel of the keys. #reverse_boolean notation rules!
Nice! Still keeping my old #HP15C that has served me faithfully since 1988. Don't use it anymore, but only because I have an app on my phone that emulates it 100%. I only miss the feel of the keys. #reverse_boolean notation rules!
Prof Lutz
SwissMicros DM15C and DM15L Review
Aesdeef
Alastair Bor 🇦🇺Meh… my RPN calculators never had a C button (that was used like that) either. https://www.theatlantic.com/technology/archive/2024/10/iphone-broke-its-calculator/680271/ #hp12c #hp11c #hp15c #hp16c
technicat
Zdeněk Starý
Jason#ImNotSayingImOldBut I still have my college-era HP15C calculator.
(Yes, #HP15C, it's a cult! 😜)