# Clock Hands Pictures for $2 \times 2$ Real Matrices

by Charles R. Johnson and Brenda K. Kroschel

College Mathematics Journal
March, 1998

Subject classification(s): Algebra and Number Theory | Linear Algebra | Eigenvalues and Eigenvectors
Applicable Course(s): 3.8 Linear/Matrix Algebra

The article illustrates the notion of eigenvalue and its corresponding eigenvector using hands of an analog clock. This capsule deals with $2 \times 2$ real matrices, single eigenvalues, and complex ones as well.

A pdf copy of the article can be viewed by clicking below. Since the copy is a faithful reproduction of the actual journal pages, the article may not begin at the top of the first page.