Linear Transformations | Courses

The root idea

A matrix is a grid transformer

Change the numbers and watch where the i/j axes and the 1×1 square go.

Light lines are the old grid; blue lines are the grid after matrix A.

From this picture:Multiply = compose transformationsDet = area scaleInverse = can we undo?

The root idea

Change the numbers and watch where the i/j axes and the 1×1 square go.

Light lines are the old grid; blue lines are the grid after matrix A.

From this picture:Multiply = compose transformationsDet = area scaleInverse = can we undo?