I'm sad; I had him for the same course Pachter describes. One time he lectured on the prime number theorem, just for entertainment: he didn't prove it, but got

I'm sad; I had him for the same course Pachter describes. One time he lectured on the prime number theorem, just for entertainment: he didn't prove it, but got deep enough to rather blow me away. Here's a more recent elementary talk of his: http://www.its.caltech.edu/~mamikon/VisualCalc.html http://www.its.caltech.edu/~mamikon/VisualCalc.html