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# any good mathematicians here? watch

1. I am lost and need guidance :/
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2. (Original post by Chinese Noodles)
I am lost and need guidance :/
To find an eigenvector corresponding to an eigenvalue you need to find a vector satisfying:

If you don't know how to do this, multiply out the LHS to get three simultaneous equations and solve them in terms of a parameter.

EDIT: Corrected my matrix.
3. this should help:

https://www.scss.tcd.ie/Rozenn.Dahyo...utionEigen.pdf
4. (Original post by 16Characters....)
To find an eigenvector corresponding to an eigenvalue you need to find a vector satisfying:

If you don't know how to do this, multiply out the LHS to get three simultaneous equations and solve them in terms of a parameter.

EDIT: Corrected my matrix.
i got the cubic equation where x = lamnda

x^3 + 2x^2 -18x -1 = 0

doesnt give integers :/ one of the soloution is 1
5. (Original post by Chinese Noodles)
i got the cubic equation where x = lamnda

x^3 + 2x^2 -18x -1 = 0

doesnt give integers :/ one of the soloution is 1
How did you get that equation?
6. (Original post by 16Characters....)
How did you get that equation?
ok i got x^3 + 3x^2 + 3x -1 = 0 now

still no luck

i just used the determinant method
7. (Original post by Chinese Noodles)
ok i got x^3 + 3x^2 + 3x -1 = 0 now

still no luck

i just used the determinant method
So you are trying to find the eigenvalues? OK I thought you were looking for the eigenvector.

If so you are one sign wrong, the characteristic equation should be .

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Updated: October 31, 2015
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