Eigenvalue, Eigenvectors, Linear Algebra, Mathematics, Principal Component.
A) = 0. This is called the characteristic equation of A. Example: Following the last example, using the equation det(λId — A) = 0 in matrix A, we have Where (λ - 3)(λ + 1) = 0. The solutions of this equations shows that the eigenvalues of A are λ = 3 and λ = -1. The polynomial (λ — 3)(λ + 1) = 0 is