06-11-2025, 10:13 AM
(05-11-2025, 05:41 PM)Nick Wrote: I also still have my school British Thornton slide rule...
Me too: it's in here "Somewhere".
I found the Commodore 4180 and 4190 calculators the other day whilst cleaning.
The 4180 cost me £79.
A year or so later the 4190 cost £39 and had twice the functions plus polar rectangular that worked in all 4 quadrants.







