35S Insanity

[naddy]

(11-30-2024 04:42 PM)Thomas Klemm Wrote:  To me it looks like a bit of everything was crammed into this calculator but nothing was done properly.

I just skimmed through the manual, which is very much derived from the 32SII one, because featurewise the HP-35S is indeed a slightly extended 32SII. It has more memory, so a stack level can now hold a complex number or a three-element vector, and there are a lot of unnamed registers that can be addressed indirectly. Oh, and it has an algebraic mode.

Is it possible that they didn't have/couldn't use the source code and re-implemented everything from scratch, modeled on the 32SII?