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**Summary:**I have an undergrad CS degree, but I'm trying to learn about quantum mechanics without going back to school.

I'm interested in learning more about quantum mechanics, but I'm having trouble finding a starting point. It seems like every time I try to learn more about a particular QM concept online, I get stuck down a rabbit-hole of wikipedia articles, trying to learn about all of the notation and pre-requisite concepts.

For my CS degree, I took calc 2, statistics, linear algebra, discrete math, and a couple of physics classes (one which touched on QM). I've read a few non-technical physics books (Lawrence Krauss, Stephen Hawking, etc.), and I consider myself to have a pretty good layman's understanding of physics. I'd like to avoid spending a ton of money on textbooks if possible, but as of now, it seems like they might be my best option.

Any insight would be greatly appreciated!