Given a square matrix, is there an easy way to know when it is invertible? Answering this fundamental question is the goal of this chapter. Contributor David Cherney, Tom Denton, and Andrew Waldron (U...Given a square matrix, is there an easy way to know when it is invertible? Answering this fundamental question is the goal of this chapter. Contributor David Cherney, Tom Denton, and Andrew Waldron (UC Davis)