Explanation

Matrices can operate in higher dimensions.

Examples:

• 3D graphics use 3×3 or 4×4 matrices

• Physics uses multi-dimensional vectors

Same rules apply:

• Rows × columns must match

• Multiply rows by columns

Quiz

1. Can matrices work in 3D?

2. What size matrix transforms a 3D vector?

3. Are the rules the same as 2D?

4. Is this used in graphics?

5. Do dimensions have to match?

Answer Key

1. Yes

2. 3×3

3. Yes

4. Yes

5. Yes