Most of the recent content has come from two main sources. First, I have been adding, as before, examples of image analysis from the users of Pixcavator. The second is the course I’ve been teaching since last fall: Introductory algebraic topology. I plan to add more content from the courses that I teach: Vector calculus (this summer), Introductory differential geometry (next fall), and maybe also something of lower level like Calc1 (next winter).

What is the goal? I would like the site to cover a big chunk of the math curriculum, interlinked within and with the computer vision / image analysis topics (see The Mathematics of Computer Vision). Even though the format is identical to Wikipedia the presentation is very different. This is a textbook: more details, more examples, exercises, etc. It can still be used for reference.

The content comes directly from my lectures. I use Tablet PC with Windows Journal. I started doing this last fall and I really love the results: bright, colorful slides, but with the spontaneity and flexibility of a chalkboard. Later I transcribe the lectures into text, put it on the site, and simply copy the illustrations. (Plus, I don’t have to deal with chalk on my shoes, pants, and lungs!) I think this approach has huge advantages over the common practice of simply posting video lectures online: searchability, cross-linking, speed of download, the person can read and work at his own pace, etc.