5
Matrices and Equations
So, matrices are not just tables of numbers but linear transformations; we have spent a lengthy chapter discovering this relationship.
Now, I want us to circle back to the good old tables of numbers once more, but representing systems of linear equations this time. Why? Simple. Because solving linear equations is the motivator behind key theoretical and technical innovations. In the previous chapter, we talked about inverse matrices but didn’t compute one in practice. With what we’re about to learn, we will be able to not only compute inverse matrices but do so blazing fast.
Let’s get to work!