Does Khan Academy cover the math topics of Concrete Mathematics yet? Looking at their list of math courses I don't see a single discrete math course in the bunch.
Right, which was what I was getting at. The person I responded to had written:
> Knuth has even written a book, Concrete Mathematics, that covers these pre-requisites but it might be faster and easier to watch a Khan Academy video!
Which suggests KA as an alternative to CM. Which doesn't follow if it doesn't cover the same material.