this post was submitted on 03 Sep 2024
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Science Memes

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Tensors (mander.xyz)
submitted 3 months ago by [email protected] to c/[email protected]
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[โ€“] [email protected] 13 points 3 months ago (1 children)

How you describe a thing is different from what a thing is... A tensor is not a matrix.

And on mathematics, "what a thing is" is a completely useless concept... So, it makes no difference whatsoever.

[โ€“] [email protected] 0 points 3 months ago

the "categorical" way of defining tensor products is essentially "that thing that lets you turn multi-linear maps into linear maps", and linear maps (of finite dimensional vector spaces) are basically matrices anyways. so i don't see it as much of a stretch to say tensors are matrices.

(can you tell that i never took a physics class?)