"Fifth root of -1", by Mr. Z.

Mr. Z. has a wide variety of hobbies and interests, ranging from forestry and biology to electrical engineering to martial arts to fractals, a type of mathematical artwork (image to left). His favorite television show of all time was Square One, which was a math show on PBS years ago. His new favorite book of all time, which he read for the first time this year when a student left a copy in his classroom, is

This is Mr. Z.'s second year of teaching, and he still has a lot to learn. The more feedback you can give him on how class is going, via the website, the faster he can get better at teaching, and the more fun your class will be.

Leave comments on this page if they are general comments about the course. If you want to comment on a particular homework, activity, or assignment, it's probably better to find that node and comment there.

You can email Mr. Z. at