HP 25 Fibonacci sequence in one program step

[Joe Horn]

(10-13-2021 02:19 PM)Dave Britten Wrote:  I'll warn you, it's both really stupid, and really clever. I'll post a short write-up later if nobody gets it before then.

The important detail is that it's fair for the program to require the user to set up any or all of the stack/memory/display mode/etc. prior to running the program. But program memory only needs one step plus a GTO 00.

Is it just × [multiply] with the stack loaded with something, like the golden ratio perhaps? Even in FIX 0 mode that doesn't get correct results....

Hmmm... maybe with the correct X it works... 0.45 works for a while...

OOPS! Valentin beat me to it! Still looking for the best starting X...