Sorry sir, let me ask. Isn't the diagonal part of the matrix when looking for eigenenergy incorrect? Shouldn't it be a-E; c-E; and a-E? Sorry for my bad english and thank you for the video, Sir.
Hey there! Thanks for stopping by and asking! I don't think it matters here. In linear algebra books, like Anton's, they solve the matrix equation with the characteristic equation det(λI-A)=0 where λ is the eigenvalue. Some quantum mechanics books solve it with the characteristic equation det(A-λI)=0. You yield the same eigenvalues.
Sorry sir, let me ask. Isn't the diagonal part of the matrix when looking for eigenenergy incorrect? Shouldn't it be a-E; c-E; and a-E? Sorry for my bad english and thank you for the video, Sir.
Hey there! Thanks for stopping by and asking! I don't think it matters here. In linear algebra books, like Anton's, they solve the matrix equation with the characteristic equation det(λI-A)=0 where λ is the eigenvalue. Some quantum mechanics books solve it with the characteristic equation det(A-λI)=0. You yield the same eigenvalues.