HP-41C List of "over 130 functions"?

[Dan Grelinger]

(04-16-2018 05:45 PM)Dieter Wrote:  I'd say this depends on the definition of "not reall anything". ;-)

I would maintain that the shift key does not actually do anything for the user (required to be a function). In the example program you provided, the BEEP function does something, the FS? function does something, the GTO function does something, but the shift key is nothing more than any other button on the calculator. The buttons on the calc are not functions. Pressing them may cause a function to be executed, but they themselves are not functions. The shift key is a button that normally has no function behind it.