Set Theory

[Thomas Okken]

(05-03-2019 04:12 PM)Leviset Wrote:  do nearly all HP-42S programs run on the HP-41CX?

Judging by my own collection, I'd have to say no, absolutely not. I do have a few programs that will run on the 41CX (or even on the 41C), but those are all programs that were originally written for those calculators.

Around 80% of the programs in my collection make use of features like named variables, matrices, or the solver, and would not run on the 41CX without at least extensive modifications. Those features are so powerful and so versatile that they tend to crop up in almost any nontrivial program you'll write on the 42S.