"Bald Eagle" <cre### [at] netscapenet> wrote:
> "And" <49341109@ntnu.edu.tw> wrote:
>
> > I have basic capability with vector and matrix. But fail to understand
> > eigenvalue/ eigenvector / diagonal matrix
>
> https://www.youtube.com/watch?v=PFDu9oVAE-g
> https://www.youtube.com/watch?v=e50Bj7jn9IQ
>
> > I ever derive/coding method of axis rotate by myself.
>
> Yes, that's a good thing to do - the more you understand the basics, the less
> mysterious the more complicated stuff seems to be.

Thanks the youtube link. I will think them one day.

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