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

28 points idatum | 8 comments | 09 Mar 25 05:02 UTC | HN request time: 0.006s | 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. jqpabc123 ◴[09 Mar 25 14:35 UTC] No.43309343[source]▶
Not what the OP asked for but related.

The link below is for a near perfect simulation of the classic HP-15C RPN calculator. Works on both desktop and mobile.

In a former lifetime, I was an engineer. I bought one of these in the early 1980s and used it for almost 40 years before the screen died. Very popular among my colleagues at the time.

https://jrpn.jovial.com/

replies(3): >>43310668 #>>43343183 #>>43343586 #
2. sloaken ◴[09 Mar 25 16:28 UTC] No.43310668[source]▶
That is awesome. Thank you for posting this.
3. dwighttk ◴[12 Mar 25 13:43 UTC] No.43343183[source]▶
Need to find one of these for hp32SII
replies(1): >>43343705 #
4. y33t ◴[12 Mar 25 14:24 UTC] No.43343586[source]▶
If you want a native options on a mobile device, Free42 and 48sx work great on Android (I believe at least Free42 is on iOS). Emu48 works on desktop (personally I like `dc`). Look at SwissMicros if you want a physical calculator.
replies(1): >>43344453 #
5. zokier ◴[12 Mar 25 14:34 UTC] No.43343705[source]▶
https://www.swissmicros.com/product/model-dm32
replies(1): >>43350246 #
6. criddell ◴[12 Mar 25 15:45 UTC] No.43344453[source]▶
If you want a truly native option, a small run of HP-15C calculators was manufactured a year or two ago and you can still get them:

https://hpcalcs.com/product/hp-15c-collectors-edition/

I bought one and am happy every time I use it, which is quite often.

replies(1): >>43344880 #
7. y33t ◴[12 Mar 25 16:24 UTC] No.43344880{3}[source]▶
Thanks for the heads up! Just ordered one.
8. dwighttk ◴[13 Mar 25 03:58 UTC] No.43350246{3}[source]▶
Nice… I actually still have a couple, but that’s a nice looking upgrade