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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 10 months ago

Tensors

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Tensors

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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 10 months ago
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  • theblueredditrefugee@lemmy.dbzer0.com
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    10 months ago

    The difference between a matrix and a 2d array of numbers is the operations that are performed

    A tensor really isn’t standardized in the same way so it’s basically just an n-d array in my mind

    • azi@mander.xyz
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      10 months ago

      good ol’ nominal typing

    • ZILtoid1991@lemmy.world
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      10 months ago

      You can force a 2D array to be a matrix if you’re clever enough

    • Hawk@lemmynsfw.com
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      10 months ago

      Well, it would still be a vector. So some standardisation.

  • 🇦🇺𝕄𝕦𝕟𝕥𝕖𝕕𝕔𝕣𝕠𝕔𝕠𝕕𝕚𝕝𝕖@lemm.ee
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    10 months ago

    Everything’s a matrix if u fuck with it hard enough

    • Ignotum@lemmy.world
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      10 months ago

      Everything’s a matrix if you realize there is no spoon

      • UnRelatedBurner@sh.itjust.works
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        10 months ago

        Sadly, they patched the spoon exploit.

        • ZILtoid1991@lemmy.world
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          10 months ago

          You can still use movd, movq, movups, etc.

  • mumblerfish@lemmy.world
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    10 months ago

    A tensor is something that transform as a tensor. Gtfo Christoffel symbols.

  • marcos@lemmy.world
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    10 months ago

    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.

    • affiliate@lemmy.world
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      10 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?)

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