Do I dare to use my 41?

[Sylvain Cote]

(10-27-2018 01:26 AM)Dave Britten Wrote:  Strictly speaking, the 42S was HP's replacement for the 15C. It just happened to be largely compatible with 41C keystroke programs. The 48SX was the replacement for the 41C.

To my knowledge, the calculator was developed as a replacement for the HP-41 and it is why most of its RPN opcodes are identical to the HP-41 ones.
It's only near the end of the development phase that the management changed their idea and turned it into a HP-15C replacement.
As a result, the development team had to remove some of the features and block some others.
I am searching my old journals (PPC/CHHU/HPX/etc) to get the source of that information, will post it here when I find it.