# Compute the Eigenvalues and Eigenvectors

by swtjuice
Tags: algebra, eigenvalue, eigenvector, linear
 P: 3 1. The problem statement, all variables and given/known data Compute the Eigenvalues and Eigenvectors of A A= [0 0 1;0 2 0;3 0 0] 2. Relevant equations |A-lamda*I|=0 where I know the lamdas and plug them into the above equation and expand the system of equations. 3. The attempt at a solution I have solved for the eigenvalues and got +sqrt(3), -sqrt(3) and 2. I have solved for the eigenvectors associated with +sqrt(3), -sqrt(3), and checked them in matlab. For lamda (eigenvalue) of sqrt(3) the eigenvector is [ 1;0;sqrt(3)] For lamda (eigenvalue) of -sqrt(3) the eigenvector is [ -1;0;sqrt(3)] But for when the eigenvalue is equal to 2 I come up to problems. where the 2nd row of my matrix is all zeroes. This confuses me because I have checked the vector in matlab and know it should be [0;1;0]. Which is impossible based on the 2nd row being all zeroes.

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