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What's the current go-to calculator for electrical engineers?
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kripton2035:
I just bought a used hp prime, and it is stuck in exam mode... plug it in a computer as it should remove the exam mode, but no.
seems it doesn't work if you connect to a mac computer... I tried some old pc's I have and same problem.
I even format the internal drive, this thing is still stuck in exam mode
is there a way to reset it factory ? thanks.
SiliconWizard:

--- Quote from: David Hess on November 06, 2021, 02:22:21 am ---So the HP Prime runs for 25 hours on a custom lithium-ion battery, and barely supports RPN?  That is no better than a PDA, no thanks.

--- End quote ---

 ;D

To be fair, the Prime is a pretty good calc. Now the fact it has limited runtime on a battery charge is very annoying, I agree. While, as I said, I almost never use real calculators anymore, if I'm gonna use one occasionally, I certainly don't want to have to bother with keeping it charged at all times.

And IMHO - sure this is opinion - RPN, while pretty nice on the older and simpler calculators, isn't all that useful on more modern calculators with much largers screens, and most of all, the ability to retain the history of the last calculations - something you could never do properly in RPN, at least nowhere near as easily. All you could have an history of were "values". Not complete expressions.

It all comes done to habits and your way of working of course. But while I also was a fervent proponent of RPN back in the days, I don't really care anymore for it now. I much prefer the ability of reading all the last expressions your entered in clear, being able to recall any and just change some values, copy and paster values or expressions partially or entirely, etc. It's infinitely more productive.

But yes, habits are all personal and hard to change, so I'm just saying what works for me.

tooki:

--- Quote from: David Hess on November 06, 2021, 02:22:21 am ---So the HP Prime runs for 25 hours on a custom lithium-ion battery, and barely supports RPN?  That is no better than a PDA, no thanks.

--- End quote ---
The battery is actually a really generic thing, I think originally used in some Samsung phone.

PDAs don’t have good keypads, if they have one at all. This one has likely the best keypad of any graphing calculator.
tooki:

--- Quote from: kripton2035 on November 06, 2021, 05:16:35 pm ---I just bought a used hp prime, and it is stuck in exam mode... plug it in a computer as it should remove the exam mode, but no.
seems it doesn't work if you connect to a mac computer... I tried some old pc's I have and same problem.
I even format the internal drive, this thing is still stuck in exam mode
is there a way to reset it factory ? thanks.

--- End quote ---
Just to be clear, it’s not plugging it into a computer that ends exam mode, it’s plugging it into a computer and using the appropriate command in the HP Prime Connectivity Kit software to turn off exam mode.

On the Mac, the newest version of the connectivity kit software doesn’t run on older OSes (but will still install!) so be sure to check the system requirements and use an older version if necessary. HP’s FTP server still has all the software: ftp://ftp.hp.com/pub/calculators/Prime/
tooki:

--- Quote from: Just_another_Dave on November 02, 2021, 09:30:03 pm ---I also use the HP prime, but finding programs for it is a bit harder. Do you know if there is any website dedicated to it?

--- End quote ---
Here:
https://www.hpcalc.org/ (scroll down to Prime Apps for the category links; there’s no home page for all Prime apps)

Some are also listed here:
https://en.hpprime.club/apps
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