Question

If you have a quadratic matrix, how do you find its eigenvectors?

Answer 1

im gonna have to learn what these eugene things for linear algebra arent i

Answer 2

\[=\left[\begin{matrix}2 & -1 \\ -1 & 2\end{matrix}\right]\] with eigenvalues \[\lambda = 1\] and \[\lambda = 3\]

Answer 3

http://www.wolframalpha.com/input/?i=eigenvalues+ {{4%2C1}%2C{2%2C-1}}

Answer 4

the link parser dont like {}s i spose

Answer 5

I have the answers. Im just trying to figure out how he got \[1/\sqrt{2}\left(\begin{matrix}1 \\ 1\end{matrix}\right)\] and \[1/\sqrt{2}\left(\begin{matrix}-1 \\ 1\end{matrix}\right)\]

Answer 6

wish i knew, but its greek to me at the moment