vtalkch6.mws Setup (Needed for using Maple, not for viewing) Raw start (if without wqstools) Introduction. Eigenvectors and Eigenvalues Properties of eigenvectors Diagonalization: when can we achieve it? Symmetric matrices are good (diagonalizable)! More properties of symmetric matrices. Symmetric matrices, inner products and related topics Application to the critical points of multivariate functions The SVD and pseudoinverse. Pseudoinverse