Section 8.3: Matrix Arithmetic

Important Topics:

• Matrix Equality
• Properties of Matrix Addition
• Properties of Scalar Multiplication
• Properties of Matrix Multiplication

1. Matrix Addition, Subtraction and Scalar Multiplication
2. Matrix Multiplication
3. Animation:  Matrix Multiplication
4. The Identity Matrix
5. Matrix Multiplication on the Graphing Calculator
6. Ex: Matrix Addition Application - Translation
7. Ex: Matrix Scalar Multiplication Application - Dilation