Reading for lecture 3 and Friday MATLAB exercise

Reading for Lecture 3:

CC 9.1.2 Singular matrices

CC 10.2 Matrix inverse (skip Example 10.3)

CC 10.3 Ill conditioned matrices

Eigenvalues – excerpt from Greenberg available from T-square Resources

MATLAB exercise:
Calculate y = sin^2(x) for x = 30, 60, and 90 degrees. Sketch sin(x) by hand and verify your calculations make sense.