- A matrix times a vector
- The columns are where the axes land
- Rotations, reflections and stretches
- Rotation matrices and three dimensions
- One move, then another
- The single matrix for both moves
- Order matters, rotations add
- When a product exists
- Row times column
- Bigger products and prices
- Powers and routes
- AB is not BA
- Identity, grouping and distributing
- A product that is zero
- Computing a determinant
- The determinant is an area
- Flips and squashing
- Unlocks after
- Opens up