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Ask HN: Should there be new RPN calculators to replace the TI-84?

28 points idatum | 6 comments | 09 Mar 25 05:02 UTC | HN request time: 1.219s | source | bottom

I took an exam today where only TI calculators were available. I felt I was caught between some older models where the TI interface was not quite worked out.

And I don't see much progress then trying my daughter's TI-84.

1. rightbyte ◴[09 Mar 25 09:27 UTC] No.43307584[source]▶
TI calculators are not RPN. I think HP made (makes?) RPN calculators.
replies(1): >>43343398 #
2. timcobb ◴[12 Mar 25 14:07 UTC] No.43343398[source]▶
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.
replies(3): >>43343614 #>>43343655 #>>43343719 #
3. rightbyte ◴[12 Mar 25 14:26 UTC] No.43343614[source]▶
I bought a HP50 (?) in uni to do symbolic math for some exam. It was RPN by default but you could switch.
4. kube-system ◴[12 Mar 25 14:30 UTC] No.43343655[source]▶
> HP 15C, which is old school and not used in education.

Business courses frequently use it

replies(1): >>43401870 #
5. JackFr ◴[12 Mar 25 14:35 UTC] No.43343719[source]▶
You still see some HP12Cs on bank trading floors.
6. timcobb ◴[18 Mar 25 17:08 UTC] No.43401870{3}[source]▶
Oh that is cool to know, thanks.