this post was submitted on 30 Dec 2025
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The best part about using an RPN calculator (I also had an HP) was that if someone asked if they could borrow it, I could tell them that if they call do 1+1 and get 2 on it, they could use it. No one ever was successful.
RPN is great though, it's so fast if you could quickly organize the order of operations.
Edit: RPN, not RPM.
You mean RPN, right? Reverse Polish Notation.
It's the little used Roman Polanski Math, you ignoramus.
Dear Lord I'm not the only one wondering what RPM stands for!!
Lol yes. I knew what OP meant and assumed they were right and went with it.
I got used to RPN at University. Ever since, I literally struggle to do simple math with algebraic calculators, got an HP15X emulator in my phone, does all I need