this post was submitted on 10 Nov 2024
527 points (96.5% liked)

Science Memes

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527
Pants (mander.xyz)
submitted 5 days ago by [email protected] to c/[email protected]
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[–] [email protected] 1 points 4 days ago* (last edited 4 days ago)

number of legs == number of columns/fields

think it through

[–] [email protected] 4 points 4 days ago

The belt and belt loops go all along the top row. If there's only one row, the matrix can only wear a short-shorts version. There's a crotch in each space between columns, and a leg on every column of length greater than 1.

Sparse matrices have their own special pants that are more efficient, of course.

[–] [email protected] 11 points 4 days ago* (last edited 4 days ago)

I did not think I could hate pants memes more, yet here we are.

Excellent.

[–] [email protected] 3 points 4 days ago

z scan it

[–] [email protected] 2 points 4 days ago

Damn degenerates and their hip blue jeans.

[–] [email protected] 4 points 4 days ago

Depends on the day I'd say. Option 1 if they're feeling row major, option 2 for column major days

[–] [email protected] 5 points 5 days ago

I bet there are shelfs full of mathematical textbooks about that question.

[–] [email protected] 37 points 5 days ago (1 children)

Depends on the programming language.

[–] [email protected] 12 points 5 days ago* (last edited 5 days ago)

Since the first element is a_11 and not a_00, I guess we can assume it's Matlab or Fortran or something similar.

[–] [email protected] 29 points 5 days ago (1 children)

Depends on the problem you're trying to solve, just keep it consistent and don't mix the two.

[–] [email protected] 5 points 4 days ago

But wait... You can only multiply one kind with the other!

[–] [email protected] 10 points 5 days ago* (last edited 4 days ago) (1 children)

Well they are same and switch between thoose styles when you take transpose

[–] [email protected] 1 points 4 days ago

Haha I thought this.

I think it would wear one wide i item wide set of pants, and each leg would have one column

[–] [email protected] 13 points 5 days ago

This is so stupid, I love it.

[–] [email protected] 74 points 5 days ago (2 children)

Neither. What is shown above is not pants, it is a pant. To be plural multiple legs must joined to a single trunk.

Maybe the legs even run diagonally along the identity axis.

[–] [email protected] 5 points 4 days ago

Yeah, I feel it should wear pants with three legs, not one.

[–] [email protected] 19 points 4 days ago

Yeah, looks like OP missed topology class: https://en.wikipedia.org/wiki/Pair_of_pants_(mathematics)

[–] [email protected] 5 points 5 days ago

Maybe both? One leg goes this way and the other that way around...

[–] [email protected] 5 points 5 days ago (1 children)

Nice pants. Did you buy them in the Matrix?

[–] [email protected] 3 points 4 days ago

How did he see me?

[–] [email protected] 8 points 5 days ago

We'll have a diagonal argument about it.