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What's your favorite calculator?

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PlainName:
Like t'other chap I use realcalc on Android (in RPN mode), but for PC use there is Opalcalc:

https://www.skytopia.com/software/opalcalc/

malagas_on_fire:
Casio fx-570W

MrMobodies:
I got an old Texas Instruments TI-92 PLUS.

I like how I can go back to the calculations using the arrow keys to check for typos and alter them.

Gyro:


That'll teach me to take evening photos under indoor lighting - the colour rendition is way off!  ::)

Stray Electron:

--- Quote from: Rick Law on August 12, 2019, 04:48:33 am ---HP45.  I love that calculator.  I have the calculator case still, but I have no recollection what might have happened to it.

--- End quote ---

  LOL!  I was digging through a pile of stuff today and found a box for a HP-45 with the charger and original book.  I have no idea where the calculator went.

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