Computing

I've done some computing, partly as an end in its own terms and partly to help me get other things done. Here's a small subset of that work:

I've been working with some spatially explicit models in biology.
At Columbia University, I was the first to use Webwork, a web-based system for assigning and scoring mathematics homework. I wrote an extension which introduces a new channel for communication between student and instructor. I spoke about it at the AMS/MAA joint meetings; here are my notes from that talk. (You'll have to download them and view in full screen mode for them to make sense.)
As an undergraduate at Brown University, I wrote a monograph on algorithms under the guidance of Roberto Tamassia.
I also helped write software described by Tom Banchoff et. al. in Student-generated software for differential geometry, MAA Notes 19 (1991), 165-172.