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Conversing with Mathematicians (mander.xyz)

submitted 3 months ago by fossilesque@mander.xyz to c/science_memes@mander.xyz

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[-] Ravi@feddit.org 9 points 3 months ago

No definition what values are suitable for x.

[-] quicksand@lemm.ee 20 points 3 months ago

x has to be -10, right? Or am I missing something?

[-] jacksilver@lemmy.world 6 points 3 months ago

Yeah, I think the point is that the person answering was wrong/over complicating. If x=10i, then x^2 would be -100 (or potentially -10 depending on what you think the ^2 is applied to).

[-] Khanzarate@lemmy.world 21 points 3 months ago

They said x=10i^2, not 10i. Difference is it equals -10, and they chose not to simplify.

[-] SoleInvictus 4 points 3 months ago

They're correct, it's just overcomplicated as fuck in ways that are correct but completely irrelevant to the question.

[-] Ravi@feddit.org 5 points 3 months ago

Depends on what are the allowed values for x are. Real numbers, complexe numbers, binary or I made up my own numbers ;)

[-] WolfLink@sh.itjust.works 4 points 3 months ago

The answer in the meme (10i^2) is -10

[-] Malgas@beehaw.org 3 points 3 months ago

Probably what they were going for, but there are literally an infinite number of exotic arithmetic spaces you could ask this question in. For example, x=10 works in any ring with a modulus greater than 100 and less than 1000.