Challenge: Generate a 64 in the display (RPN)

[Valentin Albillo]

.
Good afternoon, Gerson:

(09-04-2020 02:56 PM)Gerson W. Barbosa Wrote:  I don’t care a straw for political correctness, but I would say the award goes to Valentín Albillo, who was the first to point out to a two-step solution on the HP-42S.

Thank you very much, Gerson, toma lo que quieras.

Anyway, my solution was quite obvious for alpha-capable models and it's quite general in nature: just change the character from "@" to any other and you'll get a solution for integers other than 64, e.g. using "q" instead of "@" should get you 113 ~ 355/Pi.

Quote:Sometimes a generic solution is desirable, then a special award should go to Didier.

I agree but Didier Lachieze's "generic solution", while remarkable in its intent and fully deserving of your special award, actually is not that generic.
For instance, it doesn't work for the über-classic Voyager Series HP-16C.

Best regards and have a nice weekend. And take care !
V.