19.3

This part explained a bit more about quantum computing and how it works to do things in parallel by using a linear combination of states for the input and it gets a set of states as an output. I really still don't understand how this works or why. Also, I pretty much missed how the factoring algorithm works. I understand that they perform a fourier transform on the data points, but I'm not sure what the transform's result means in the context of finding a root.