1971's Smallest Battery-Powered Calculator: Dictaphone 1680

[AndiGer]

(05-20-2023 05:55 PM)robve Wrote:  Surprisingly, this calculator has constant calculations (e.g. pressing 3x2= gives 5, then pressing 4= gives 8), which is one of the first (I believe) to have this feature. Please correct me if I'm wrong.

3x2= gives 5 ???
Really?

Andi