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.

Depends on the programming language.

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

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

Excellent.

This is so stupid, I love it.

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

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.

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

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

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

Nice pants. Did you buy them in the Matrix?

z scan it

Damn degenerates and their hip blue jeans.

number of legs == number of columns/fields

think it through