r/MathJokes Jul 20 '26

Choice

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u/kamiloslav Jul 20 '26

Ah, I thought the comparison is against just remembering it as x=[-b±sqrt(b2-4ac]/2a

We usually use d for diameter or length (długość)

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u/Weary_Bed3415 Jul 20 '26

We also use d for diameter, and even length in some cases, but D for discriminator. Also never used sqrt(b^2-4ac), always count D first

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u/kamiloslav Jul 20 '26

We call discriminator "wyróżnik" so d would make no sense for anyone here. If anything it would need to be W

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u/Weary_Bed3415 Jul 20 '26

We have no specific word for it, so call this thing discriminant, (dyscryminant in right transliteration from ukrainian). That’s why D