Alphabet Soup Prefix Conundrum

[Maximilian Hohmann]

Hello!

(03-18-2017 01:08 AM)Thomas Okken Wrote:  However, I think you're forgetting about the ugliness of the OP function.

Indeed. I sort of deleted that from my memory... Luckily those op-functions were rarely needed, with the exception maybe of some statistics functions.

(03-18-2017 01:08 AM)Thomas Okken Wrote:  I knew the TI-59 and the HP-97 quite well when the HP-41C came out, and the 41C solved the user interface problems of those earlier calculators beautifully.

I don't know. I never really got to like the Hp41. "XEQ" "ALPHA" letter letter letter are a lot of key presses to invoke a function... And if you couldnt remember "letter letter letter" of a rarely used function you could toggle through the catalog for the better part of an afternoon. This is not exactly the kind of user interface one would call "ergonomic".

Regards
Max