"JimT" <nomail@nomail> wrote:

> I'd worry about learning linear algebra from this series of films. I've only
> looked at 2 minutes of the first one but some concepts seemed to be confused. In
> particular, he didn't seem to want to distinguish between the co-ordinate (x,y)
> which is in no way re-locatable and the vector [x,y]^T which is.

I think I see what you're trying to get at, but

(a) I don't know what you mean by [x,y]^T

(b) Grant Sanderson is primarily concerned with covering the topics in away
where you intuitively understand them, and you can have some sort of visual /
geometric understanding of what the linear algebra is DOING / what it's FOR.

So, he does on numerous occasions warn you that "this isn't _exactly_ what
happens or what this means..." or "I'm lying to you about this part - because
it's more complicated than this..."
But he gets very high praise in the comments section - from people who are
professionals and even teachers/professors who finally have it "click" for them
when they can see it all come together.

I should have probably made different choices and done something like math /
physics / physical chemistry, where I would have taken linear algebra, etc. in
college / grad school, but alas, I was seduced by the Black Art of synthetic
organic chemistry.

He does do a few videos which cover dot product and cross product, which I think
folks on here would really like and benefit from, as well as a lot of his other
videos.   They're so well done, and his voice is so calm and soothing.

When I'm stressed, I can sit back with a beer and watch hours of 3B1B,
Clickspring and Mr.Chickadee...

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