[Xeronate]

I get what you are saying, but is the right way to learn math with a "connected path". I've heard "The art of problem solving" series works through math in the correct way, but I'm not sure how far I would get on that alone. Right now I'm trying to gain intuition in linear algebra via OCW with Strang, but I would like to truly understand. Is the only way to just to do a second bachelors in math?

[throwawaymath]

You don't need to do a second bachelors - you really need four or so courses. If you have the patience and dedication you can sit down with the textbooks and work through them on your own.

[asafira]

This.

There's always more you might want to learn, but when people talk about these basics, it's really just being super focused in 4 or so classes, not a whole ivy league undergrad curriculum in math.

probability & stats, multivariable calculus, and linear algebra will take you a long way.

[Xeronate]

Cool. I will look into those, but I was asking as a general interest in math question. I actually have no interest in machine learning. I'm bored of chasing money. Interested in 3D computer graphics and math for math's sake.

[js2]

> They haven't needed it, so they haven't retained it even if they learned it in college.

True for me. I knew all of these from my course work when I graduated with my CS degree in 1996. I haven't used them at all in my career, and so I'd be starting basically from scratch re-learning them.

[bitcoinmoney]

Can you recommend books and online courses to hammer these concepts down? I used PCA and k-means for my masters thesis but didn’t really know how well they work under the covers.

[asafira]

As is mentioned in this thread, Linear Algebra Done Right is a solid textbook for learning linear algebra. I might start there =).