mixed fraction program for hp 28s

[Gilles]

(10-11-2024 06:59 PM)Steve Simpkin Wrote:  Correct, →Q was not introduced until the HP-48SX.

So we could perhaps create this one with the FRAC below, the algebraic 'A/B' and the OBSUB command I see in the 28s reference manuel. Just an idea, i dont own a 28S and OBSUB dont exist in the 48SX and 50g si In can't test.