My favourite.
Like Jimmy, this is my favourite calculator and app. When going through Uni, (‘70s) I used my HP-25 instead of the “mainframe” computer, and it out-performed that one in terms of availability and response time. Probably didn’t carry as many significant digits, though.
Later, I used it instead of the early “personal computers”, because it came with a “free” operating system & programs and cost one tenth of a PC.
I know that all computers must translate equations into RPN anyway, and thad BOMDAS is RPN, too, so why not just keep using RPN? Where is the RPN spreadsheet?
Now, I use RPN to score my Scrabble words.
Later, I used it instead of the early “personal computers”, because it came with a “free” operating system & programs and cost one tenth of a PC.
I know that all computers must translate equations into RPN anyway, and thad BOMDAS is RPN, too, so why not just keep using RPN? Where is the RPN spreadsheet?
Now, I use RPN to score my Scrabble words.
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Huh - looks like a phone app
This looks like something that was created for the iPhone and just ported without any consideration for screen size - I’d like to see this 2-4 times its size if I’m on a desktop
Faithful
I used a HP25c in 1970’s. This is a very faithful emulation that I’ve used for many years.
The best HP25c
The best HP25c emulator I could find.
My favourite calculator.
I have this on my iPhone. I purchased a HP-25 in 1978 and used it through the final year of school, through university and into my teaching career. I only stopped using it when the battery pack died then I discovered this app. Bliss! Once you learn RPN you can never go back. I love this app - it is identical to the real thing.
My only bugbear is "How do I turn off the Stack/registry screen?" I just seem to randomly tap the screen for minutes until it randomly turns off. There must be an easier way. Help.
My only bugbear is "How do I turn off the Stack/registry screen?" I just seem to randomly tap the screen for minutes until it randomly turns off. There must be an easier way. Help.
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