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Matrix Analysis by Horn and Johnson is another great book, though it is a bit pricier than a Dover book.

You may enjoy this:

Any more details on this one? What might one use-case be for this application?

If I have an atrophied high school level understanding of linear algebra, will I get anything out of that book?

For the basics, start here:

Certainly a useful reference, if you might deal with the topic for some project … but not the best refresher out there for the basics.

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