Some of these things are more finished than others.
Source code and free stuff.
currently teaching
Math 2930 in summer school.
recent syllabi
294 fall 07 ,
293 spring 07 ,
323 fall 05 ,
336 summer 05 ,
192 summer 02
applets
vector fields ,
differential equations ,
linear algebra ,
tensegrity ,
heat equation in 1d ,
heat equation in 2d ,
wave equation in 1d ,
wave equation in 2d ,
moving iterated function system ,
maps of the plane ,
a pendulum
notes
euler flows 1d and acoustic waves ,
differential equations ,
classic guitar ,
determinant ,
oiler method ,
differential forms ,
economics
toys
trig ,
spherical and cylindrical coords ,
surface area
translations
Leray Sur le Mouvement d'un Liquide Visqueux
Emplissant L'espace
(Thanks to Shigeru Masuda of Tokyo,
Danny Goodman of Harvard, and Chris Orum of Los Alamos
for sending corrections.) ,
Nash Le Probleme de Cauchy pour les Equations
Differentielles d'un Fluide General
pictures
A cyclic flex of the Connelly-Steffen
surface .
And finally, what mickey mouse looks like if you live in a
torus .
last modified June 2008