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Ok, some nerd please explain the switches on this IRL calculator app (lemmy.world)

submitted 2 weeks ago by [email protected] to c/[email protected]

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Crossposted from https://lemmy.world/post/24154232

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[–] lemmyng 27 points 2 weeks ago (2 children)

This seems to be a calculator for businesses.

Centre left: Rounding switch - Always round up / rounding off if the last digit is 0-4, rounding up if the digit is 5-9 / always round down (truncate)
Centre right: Decimal switch - switch between monetary values (A), fixed decimal point (number of digits to the right of the decimal that are shown) (02346), floating point mode (all digits) (F)
Right: Sigma switch - adds the results of the = or % key to the accumulator (useful when summing up ledgers)
Left: Not sure, perhaps turning print mode on/off?

Reference: https://manualmachine.com/victortechnology/14603/753934-user-manual/

[–] troyunrau 13 points 2 weeks ago

Was about to reply with guesses for centre two switches that match your reply. But you've got the manual so I'll just say: great answer! :)

[–] [email protected] 2 points 2 weeks ago* (last edited 2 weeks ago)

Wasn't aware that this was cross posted here! It's a Facit 2102. Built by Sharp.

We figured out that the left switch is constant. Konstant in swedish.

The right switch seems to add an I to the top right. Then you can do something with the rightmost row of buttons. Something which I don't understand.

This calculator does not have a printer. It's all screen on this computer, ~~baby~~ eh... Nerd!

Here's info I've found online

Edit: Picture of the I with a random 6 I punched in.