1. The problem statement, all variables and given/known data I have a matrix H= [h g g h] and I need to find the eigenvalues and normalised eigenvectors 2. Relevant equations 3. The attempt at a solution I subtracted lamda from the diagonal and then solved for the determinant equally zero. The eigenvalues I found were (h-lambda)^2=g^2 so (h-lambda)=+/- g lamdba=h+/-g but I'm not sure how to find the normalised eigenvectors?