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davidrosenberg / mlcourse

Machine learning course materials.
https://davidrosenberg.github.io/ml2018
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Make a note sheet or concept check connecting quadratic form with ellipsoids #61

Open davidrosenberg opened 6 years ago

davidrosenberg commented 6 years ago

I think Brett wrote a related concept check... Maybe already did this completely. Should basically talk about eigenvector, eigenvalues, and connection to principal axes.

Also -- what does solution set look like when X is not full rank. current treatment is imprecise.