Linear Algebra 20e: Proof that Length Preservation Implies the Orthogonal Matrix Property
2:37
Linear Algebra 20f: The Product of Two Orthogonal Matrices Is Itself an Orthogonal Matrix
17:31
Linear Algebra 20d: Length Preserving Linear Transformations and Orthogonal Matrices
14:55
Linear Algebra 22a: Introduction to Orthoscaling (aka Symmetric) Transformations
35:00
Oxford Linear Algebra: Spectral Theorem Proof
12:39
Linear Algebra 21h: The Matrix that Represents an Arbitrary Rotation in 3D
18:08
a super nice functional equation
21:22
Linear Algebra 21c: Rotation Matrices - Or Why You Should Love Trig
14:28