- Introduction to matrices
- Adding and subtracting matrices
- Multiplying matrices
- 2 × 2 Matrices and linear transformations
- Determinants of 2 × 2 matrices
- Inverses of 2 × 2 matrices
- Invariant points and lines in 2 dimensions
- 3 × 3 Matrices and linear transformations
- Determinants of 3 × 3 matrices
- Inverses of 3 × 3 matrices
- Matrices and simultaneous equations
Part 2: Adding and subtracting matrices
You can only add or subtract matrices A and B if they are the same order. We can work out A + B by simply adding the corresponding elements of the matrices. We can work out A − B by subtracting each element of B from the corresponding element of A.
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