Click for the latest version . News of my work there is available. During spring quarter 1997, I taught a course called Computer Visualization in Geometry. Click the title for a course announcement. I've posted a gallery of images computed by students.
Some recent work involves the mathematical theory of wallpaper patterns.
This is being worked into a large article for the new interactive journal Communications in Visual Mathematics. Finally, there are three panels , or pictures in which one wallpaper blends into another. Dr. Erich Neuwirth of the University of Vienna has written an Excel 5.0 spreadsheet with which you can experiment with these curves. Visit his site where you can download the spreadsheet. Using the color concepts that came up while producing wallpaper patterns, I developed a new way to visualize complex-valued functions in the plane.