this post was submitted on 27 Apr 2024
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Calculator Community

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A gift from my Calculus teacher upon graduation.

Yes manual included. Sadly the 0 (zero) button no longer works, due to battery corrosion... ☹️

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[–] MrJameGumb 7 points 6 months ago (1 children)

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

[–] over_clox 5 points 6 months ago (1 children)

You might have gotten an 83, as it fixed some sort of issue with the 82

[–] [email protected] 2 points 6 months ago (2 children)

Probably the 0 button going bad XD

[–] over_clox 1 points 6 months ago

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.

[–] over_clox 1 points 6 months ago

IIRC, the 83 model fixed some issue with the accuracy of fractions or something like that.