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zonazoo
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Finding eigenvectors: Can some just show me the steps to find the eigenvector of the following matrix, with (lambda)=2.
Matrix is given below.
 2 years ago
 2 years ago
zonazoo Group Title
Finding eigenvectors: Can some just show me the steps to find the eigenvector of the following matrix, with (lambda)=2. Matrix is given below.
 2 years ago
 2 years ago

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zonazoo Group TitleBest ResponseYou've already chosen the best response.0
\[\left[\begin{matrix}1 & 2 & 1\\ 3 & 0 & 1\\ 3 & 2 & 3\end{matrix}\right]\]
 2 years ago

brinethery Group TitleBest ResponseYou've already chosen the best response.0
I hated linear algebra and don't remember anything, but I will suggest Paul's online notes for these (just Google is). Also, if you can get your hands on a pdf copy of 'Elementary Linear Algebra' by Larson and Falvo.
 2 years ago

zzr0ck3r Group TitleBest ResponseYou've already chosen the best response.3
first do A  bI where b is some constant variable and I is the identity matrix
 2 years ago

zzr0ck3r Group TitleBest ResponseYou've already chosen the best response.3
so [1b,2,1;3,b,1;3,2,3b]
 2 years ago

zzr0ck3r Group TitleBest ResponseYou've already chosen the best response.3
understand? b is your lamda
 2 years ago

zonazoo Group TitleBest ResponseYou've already chosen the best response.0
yes, but I thought you used AbI=0, in order to find all the lambdas... and then use Ax=bx, in order to find the eigenvectors.
 2 years ago

zzr0ck3r Group TitleBest ResponseYou've already chosen the best response.3
o sorry you labda is given
 2 years ago

zzr0ck3r Group TitleBest ResponseYou've already chosen the best response.3
you have your lambda its 2
 2 years ago

zonazoo Group TitleBest ResponseYou've already chosen the best response.0
and I have all three eigenvalues, but for some reason when i am calculating for the eigenvector, i am not getting the right answer
 2 years ago

zzr0ck3r Group TitleBest ResponseYou've already chosen the best response.3
so solve for the null space of that equation
 2 years ago

zonazoo Group TitleBest ResponseYou've already chosen the best response.0
and if i can see how to do it just for lambda = 2 , i can figure out the other two eigenvectors.
 2 years ago

TuringTest Group TitleBest ResponseYou've already chosen the best response.0
if I remember this right, you just plug in each lambda and solve (Ab_1*I)=0 (Ab_2*I)=0
 2 years ago

zonazoo Group TitleBest ResponseYou've already chosen the best response.0
ahhh, got it, okay... i see where i went wrong, thank you for the help
 2 years ago
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