/sci/ - Science & Math

Anonymous Sat Nov 5 10:43:22 2022 No.14962839 [View]
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>>14962681
>Why the fuck is Einstein notation a thing?
Einstein notation turns expressions that don't make sense (because stuff like [math]a^{\mu}b_{\mu}[/math] doesn't actually have a behavior under coordinate transformations) into expressions that make sense.
It's only goofy if some mathematician tries to sell you the version where you sum over any two repeated indexes instead of lower and upper.

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/sci/ - Science & Math

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