Explore the power method for approximating dominant eigenvectors and eigenvalues of symmetric matrices in this 21-minute linear algebra video. Learn about power sequences, dominant eigenvalues, and eigenvectors. Follow along with a step-by-step example demonstrating six iterations of the power method, and discover how to use the Rayleigh quotient for eigenvalue approximation. Delve into maximum entry scaling and Euclidean scaling techniques, gaining geometric intuition along the way. Master this crucial numerical analysis technique for solving eigenvalue problems in linear algebra.