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Yeah, I'm also confused by this... the only RPN calculator I know of is the HP 15C, which is old school and not used in education.


I bought a HP50 (?) in uni to do symbolic math for some exam. It was RPN by default but you could switch.


> HP 15C, which is old school and not used in education.

Business courses frequently use it


Oh that is cool to know, thanks.


You still see some HP12Cs on bank trading floors.




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