At the end of each topic, there is a set of Review Questions. Please attempt these questions.

In each topic, there is a "I want to learn more" section. This is optional.

4. Introduction to Matrices

4.1 Matrices: Types of Matrices

4.1 Matrices: Types of Matrices (cont'd)

4.2 Matrices: Addition and Subtraction

4.3 Matrices: Multiplication

4.4 Matrices: Determinants

4.5 Solving Equations Using Matrix Inversion

4.6 Solving equations using Cramer's Rule