Topic: Symmetric Matrices and the Spectral Theorem

Orthogonal Diagonalization: A Diagnostic Problem Workshop

Ordering Eigenvalues and Eigenvectors in Q Lambda Q^T

Normal Matrices and A^T A = AA^T

Multiplicity in Characteristic Polynomials

Inverting a Symmetric Matrix from Its Spectrum

Invariant Orthogonal Complements

Geometric Action Along Orthogonal Eigenvectors

Existence of Extremal Rayleigh Quotients

Equivalent Forms of Orthogonal Diagonalizability

Eigenvalues of Symmetric 2×2 Matrices