HP41C - workaround for the SIZE? missing

[Dieter]

(04-19-2016 02:49 PM)wojtek Wrote:  How would you determine the number of data registers set in the past (and forgotten) in the HP41C?
There is no SIZE? command in this calculator.

In the early HP41 days, SIZE finders were among the most popular routines. They could be found in several issues of HP key notes and most probably many similar publications. With the advent of Synthetic Programming, faster synthetic versions became available. And of course the PPC ROM includes such a function. You may take a look at the books by Bill Wickes and/or the documentation of the mentioned ROM.

Eventually the X-Functions module became available, and so the problem was solved by the included SIZE? command. Since it offers many other useful functions, I would recommend getting such a module.

Dieter