this post was submitted on 29 Nov 2024
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Fuck geometry (lemm.ee)
submitted 1 month ago by [email protected] to c/[email protected]
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[–] [email protected] 1 points 1 month ago (1 children)

This is clearly meant to be a right triangle. And the distances between the points are the same (because the squares of the coordinate differences are the same), just the directions are different.

If you move 1 unit forward, turn the correct 90 degrees, and then move i units forward, you will end up back where you started.

[–] [email protected] 1 points 1 month ago (1 children)

You can't have a distance in a "different direction". That's what the |x| is for, which is the modulus. If you rotate a triangle, the length of the sides don't change.

[–] [email protected] 1 points 1 month ago

The vector from one point to another in space has both a distance (magnitude) and a direction. Labeling the side with i only really makes sense if you say we're looking at a vector of "i units that way", and not at an assertion that these two points are a directionless i units apart. Then you'd have to break out the complex norms somebody mentioned.