Performing operations on matrices

All matrix manipulation occurs via a set of mathematical operations based on addition, subtraction, and multiplication. Because matrix operations use these familiar fundamentals of arithmetic, they are a relatively easy concept to grasp. In this section, you will explore each of these, beginning with addition, subtraction, and multiplication. However, when it comes to division, as you will soon experience, a whole new set of concepts are required. We will cover these toward the end of this section.

Go easy on yourself if you haven’t worked with matrices before and become overwhelmed with the content. They take a lot of practice to become comfortable with and you may not appreciate many of them until you get to apply them in your own graphics projects.

Let’s start with the very familiar and simple addition and subtraction operations.

Adding and subtracting matrices

To add or subtract two matrices, they must be the same size...