Some well-explained math

Despite taking a minor in mathematics, I never really grokked matrices. I didn't even realize why it's called linear algebra (or at least I forgot quickly). These blog posts do a good job of making them more intuitive to me:

The basics of matrices: https://dhruvp.netlify.com/2018/12/31/matrices/
Eigenvectors: https://dhruvp.netlify.com/2018/12/31/matrices/

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