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A math lesson from 4chan (sh.itjust.works)

submitted 10 months ago by Early_To_Risa@sh.itjust.works to c/4chan@lemmy.world

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[–] stockRot@lemmy.world 18 points 10 months ago (23 children)

How is multiplying akin to rotating?

[–] V0lD@lemmy.world 21 points 10 months ago (10 children)

Multiplying with q negative does genuinely correspond to a 180° rotation around the origin in the complex plane (plus a scalar multiplication of course)

[–] webghost0101@sopuli.xyz 3 points 10 months ago (6 children)

I was already trying to visualize multiplying as a circle in my head and something clicks but cant grasp it.

Now reading that apparently There is a real mathematical link i am dying to learn more. Do you know of an online visualizer/simulation that helps showing what you just said?

[–] V0lD@lemmy.world 9 points 10 months ago (1 children)

Honestly, the best online resource I know of are the 3blue1brown videos on complex numbers

Any tool risks confusing you more, since multiplying in the complex plane can act quite unexpectedly when you move outside the real line for both parameters

[–] webghost0101@sopuli.xyz 2 points 10 months ago

Had a look around and this will quickly become one of my favorite media channels! Thanks!

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