In calculator app, when i click on +/- button, it doesnt make input positive/negative, but jt affects the result
e.g. i type in 10+10
result is 20
then i click +/- button and result turns into -20
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Could you tell us what you were expecting? To me, it made sense that clicking [+/-] converted 20 to -20.
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But whats the use for the ± when it can only change the result? I think you should be able to start your calculation with a negative number.
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You can. Press [-] before you type your number.
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the thing is e.g. if i have in input
10
and then click +/-, it turns it into negative number, so -10
here’s how it works on casio calculators for example https://m.youtube.com/watch?v=NSYX1G4YgMA
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by the way it would be nice if we had brackets in calculator too since e.g. 10+2×3+5 and (10+2)×(3+5) aren’t same result
maybe it could be combined,
samsung’s implementation of +/- button adds or removes “(-” before the number, i feel it’s intuitive
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Unfortunately it doesn’t work like that on the Kompakt
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yes that’s why i report it as a bug
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I gotta admit, I’ve never been a math person…so I’m confused.
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You can use the minus button to subtract from the result so far. Plus-minus button to me is a bit vague, it makes sense when you input the first number and want to make it negative. The discussion above is about how this button affects your calculation at a later stage.
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You also can press [-] before inputting the first number, and it will make that first number negative.
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sure, but its additional step.
e.g. u have number 328932, with +/- button it would be one tap
but since it doesnt work correctly you have to delete it via delete button per digit or ac once and then put the minus and then put all those numbers again and you may even make an error
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This is getting complicated. I’m gonna try & dig out my TI-83 graphing calculator & try to figure it out 
Who remembers these bad boys
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Fancy! I had a TI-55, which is what started my interest in computer programming.
With no offense to Poland, I never mastered RPN (Reverse Polish Notation), which is what Hewlett-Packard (HP) popularized with several calculators, all of which had a better keyboard than those on TI calculators.
I later upgraded to a TI-59:
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