this post was submitted on 11 Jan 2025
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[–] [email protected] 32 points 10 hours ago* (last edited 10 hours ago) (5 children)

Some guesses by ChatGPT:

Left Switch ("K" setting):
  • K: Likely for a "constant mode," where the calculator uses one operand as a constant for repeated >calculations (e.g., multiplying several numbers by the same value).
  • The other position is likely "normal mode," disabling this feature.
Middle Switch ("A/2/4/6" etc.):
  • This could control decimal rounding or precision:
  • "A" might stand for "automatic" mode.
  • "0, 2, 3, 4, 6" refers to the number of decimal places displayed or used in calculations.
  • "F" likely stands for "full precision," using all available decimal places.
Right Switch ("Σ" setting):
  • Σ: Likely enables a "summation mode," where the calculator automatically adds results to a running total (useful for bookkeeping or repetitive additions).
  • The other position disables this mode.

Being Swedish the "constant mode" seems likely as we often used k (for "konstant") in school math to represent a constant (e.g. for the slope of a line).

[–] [email protected] 9 points 7 hours ago* (last edited 7 hours ago) (1 children)

This looks mostly right. The precision slider is definitely only for the output, not calculations. The (up | 5/4 | down) is (always round up | round 5+ up and 4- down | always round down)

What I'd like to know is how the A and F settings are different.

[–] Benjaben 3 points 6 hours ago (1 children)

Auto to me (if A is Auto) sounds like it'd truncate unnecessary digits (4 or 4.0 instead of 4.0000) maybe? Whereas if F is Full then you'd get full precision?

Idk seems logical but not especially useful, probably not a great guess.

[–] [email protected] 2 points 6 hours ago (1 children)

i've never seen one of these display decimals like that, it doesn't seem like something that would need a setting.

[–] Benjaben 1 points 4 hours ago

Yeah I don't think my comment is right lol.

[–] Nurse_Robot 20 points 10 hours ago (3 children)

Bold of you to mention chat gpt in a comment, I feel like any mention of it tends to get down voted to hell, even when it's appropriately used as you did here

[–] ObviouslyNotBanana 22 points 8 hours ago (1 children)

Those fucking things are great as tools to figure stuff out. Can't trust them to be correct, but you can trust them to shoot the shit and dribble the ball to a destination which is unknowable to man

[–] TrickDacy 2 points 5 hours ago (1 children)

Can't trust them to be correct,

At some point people somehow got the idea that if you blindly trust something, bad things that come from that aren't your fault. People definitely aren't skeptical enough. That's the problem.

[–] [email protected] 4 points 8 hours ago

At least it can give you more precise questions to google to verify its output

[–] TrickDacy 0 points 5 hours ago

Yeah, people are really bad at nuance and context. Even something that is normally a shitty tool can have uses.

[–] TootSweet 14 points 10 hours ago (1 children)

Until I saw your post, I was going to guess the A,0,2,3,4,6,F switch would switch it into different numerical bases. Like, if you wanted to do math in binary, switch to the "2" position. "0" (or maybe "A") would be base 10. "F" would be hexadecimal. But what you have definitely makes more sense.

[–] [email protected] 8 points 9 hours ago (2 children)

F is 15, so that'd be weird for hex, and I've never seen base 4 or 6 used for anything, base 8 is common for some things but missing here.

[–] [email protected] 4 points 9 hours ago

It kind of makes sense in that 15 is the last single digit in hex.

[–] AnUnusualRelic 2 points 9 hours ago* (last edited 9 hours ago) (1 children)

I think some computers have been known to work in base 6. Or maybe I'm just confusing it with them using 6 bits. Probably the latter.

[–] froh42 2 points 7 hours ago* (last edited 7 hours ago)

6 bits per digit, 12 bit words. Octal (8) number system.

https://en.m.wikipedia.org/wiki/PDP-8

[–] [email protected] 6 points 9 hours ago (1 children)

Did you just plug the picture into chatgpt? It's awesome if something like that works :o

[–] [email protected] 6 points 9 hours ago (2 children)

Yes I uploaded the image and asked it the same question as OP

[–] hemmes 3 points 8 hours ago

Yeah, I use that feature all the time. It’s really great. I can upload an image of text data and get an output in table or summary format.

[–] ObviouslyNotBanana 2 points 8 hours ago

Did you literally ask some nerd to explain this app? Thank

[–] ObviouslyNotBanana 3 points 9 hours ago* (last edited 9 hours ago) (2 children)

It seems to be right on the K switch. And yeah. Konstant makes sense.

The numbered switch seems to check out at least. Other than the F. F just gives me a single decimal. edit: no... Three...?

Not sure about the right switch. It adds an I in the upper right corner and it seems possible to flip between different calculation results. Maybe?

[–] [email protected] 3 points 8 hours ago (1 children)

F is likely Floating point - so, just regular precision. Not sure what A would be, then

[–] [email protected] 3 points 8 hours ago

Checks out, since floating point is "flyttal" in Swedish.

[–] [email protected] 2 points 9 hours ago (2 children)

For checking F try typing in an irrational number. Like 22/7

[–] ObviouslyNotBanana 10 points 8 hours ago* (last edited 8 hours ago) (1 children)

Yeah that certainly worked

Photo for the nerds who like screens

Note: the display is actually a deep green to the eyes.

[–] idiomaddict 2 points 7 hours ago (1 children)

What does 22/7 get you under “A?”

[–] ObviouslyNotBanana 3 points 7 hours ago* (last edited 7 hours ago)

Setting it to A and only punching the numbers divides 0.22/7 and results in 0.03.

Actually dividing 22/7 gives us some tasty π. 3.14.

[–] [email protected] 2 points 7 hours ago (1 children)

did you just suggest a ratio as an irrational number?

[–] [email protected] 1 points 2 hours ago

Well he doesn’t have a pi button.