David JONESAug 8, 2023

I have been enjoying my foray into using an HP-45 (Desktop emulator) so much, that i glossed the documentation for FontsInUse https://fontsinuse.com/uses/55277/hp-45-calculator-documentation

#HP45

HP-45 calculator documentation

Hewlett Packard’s HP-45 was the first calculator to feature a Shift key. It was also, famously, a Reverse Polish Notation calculator, meaning that the numbers were entered first, followed by the operation to be performed (such as multiple or add). It rapidly became a beloved wo

Fonts in Use
Show threadStefan Wolfrum Aug 3, 2023
@SarahKL REALLY VERY cool, Sarah! Love your emulator a LOT! 💜 I own several old HP calcs, the 35, 45, 55, 67 are amongst them. Being able to „watch them work“ is nerdy awesome!! 🤓😎🤩👍👍 #hp #hpcalculator #hpcalculators #hp35 #hp45 #hp80
David JONESJul 28, 2023

My fave calculator at the moment is an HP-45 emulator as a macOS desktop app (despite the window management being a bit shonky). it has managed to edge ahead of my actual physical calculator, at least for a little while.

#HP45

Danie van der MerweJul 23, 2023

HP-1973 is a Python simulator app for the retro HP-45 calculator and 5 other HP ROMs, written by Sarah K. Marr

The app was written in Python and started out for the HP-45 (ROM is included) but finally included also the HP-35 and the HP-80, as well as three others. For macOS and Windows you could just run the included executables, or with the Python code, this will run fine on Linux if yo ...continues

See https://gadgeteer.co.za/hp-1973-is-a-python-simulator-app-for-the-retro-hp-45-calculator-and-5-other-hp-roms-written-by-sarah-k-marr/

#HP1973 #HP45 #opensource #python #technology

HP-1973 Is A Python Simulator App For The Retro HP-45 Calculator And 5 Other HP ROMs, Written By Sarah K. Marr - GadgeteerZA

The app was written in Python and started out for the HP-45 (ROM is included) but finally included also the HP-35 and the HP-80, as well as three others. For

GadgeteerZA
DanieJul 23, 2023

HP-1973 is a Python simulator app for the retro HP-45 calculator and 5 other HP ROMs, written by Sarah K. Marr

Exploded diagram showing explanations for the different parts off tye calculator simulator e.g. the display shows the calculator type, ROM version, the stack, simulator settings, internal values, etc. The app was written in Python and started out for the HP-45 (ROM is included) but finally included also the HP-35 and the HP-80, as well as three others. For macOS and Windows you could […]

https://gadgeteer.co.za/hp-1973-is-a-python-simulator-app-for-the-retro-hp-45-calculator-and-5-other-hp-roms-written-by-sarah-k-marr/

https://squeet.me/display/962c3e10-6a3b4a76-0f072f87274ca19b

HP-1973 Is A Python Simulator App For The Retro HP-45 Calculator And 5 Other HP ROMs, Written By Sarah K. Marr - GadgeteerZA

The app was written in Python and started out for the HP-45 (ROM is included) but finally included also the HP-35 and the HP-80, as well as three others. For

GadgeteerZA
Sarah LibmanJun 15, 2023
I'm 3,000 words into a description of the display decoding logic of the HP-35/HP-45/HP-80 calculators, for the help file of the new simulator I've written. Should be releasing it in the next couple of weeks. Here's a blurry preview, for enticement purposes.
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#retrocomputing #calculators #hp35 #hp45 #hp80 #coding #python