this post was submitted on 03 Jul 2023
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I really like the RPN input of the HP calculators. My HP48SX has died, but I have a HP35s, and the Swiss Micros DM32 & DM42.
I saw a video on youtube recently about how various algebraic input calculators handle PEDMAS/PEJDMAS order of operations:
https://youtu.be/4x-BcYCiKCk
On an RPN calculator, this is all moot, since RPN is unambiguous and the calculator simply executes the operators in the order you enter them.