A gift from my Calculus teacher upon graduation.
Yes manual included. Sadly the 0 (zero) button no longer works, due to battery corrosion… ☹️
A gift from my Calculus teacher upon graduation.
Yes manual included. Sadly the 0 (zero) button no longer works, due to battery corrosion… ☹️
I had one of these in highschool in the 90s! Mine was either the 82 or the 85 I can’t remember now since that was like 25 years ago lol
You might have gotten an 83, as it fixed some sort of issue with the 82
Probably the 0 button going bad XD
IIRC, the 83 model fixed some issue with the accuracy of fractions or something like that.
Already said that in my original post, but thank you Mr Quicksand!
I might manage to fully fix it one day, I think it’s a corroded via.