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Guys need 10 likes to get started with, thanks a lot
This is cursed.

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Glad I’m not the only one lol
https://youtu.be/i8FukKfMKCI
This was actually wildly helpful at putting it all in perspective. Definitely watch all 20 minutes of it
Yeah I watched that video last week. Really helpful
https://youtu.be/kwA3qM0rm7c
They allow a square matrix A to be factored as A = UDU' where U is a matrix of eigenvalues and D is a diagonal matrix of eigenvalues. The cols of U have special othrormality properties. D may have special properties too depending on if A is symmetric or positive definite
Typos didn’t help. U should be eigenvectors, not both eigenvalues. Also “orthonormality”, though still a mouthful and maybe not clear enough
Just finished a linear algebra course at my local community college, I know how they work in theory but OP how do you actually use them on a day to day basis?