This worksheet was purposely not rewritten from scratch after it grew from its small beginning with the pirating of the VecCalc frenet example code adapted to the ellipse and then brute force edited piece by piece to add together the various Frenet-Serret related structures to the code, while gradually exploring various questions which arose. The thought was to show how a little knowledge plus a willingness to plunge ahead can go a long way.
Clearly this worksheet could have been rewritten from scratch to be more elegant, but at the expense of removing the "do it yourself" flavor of how one can investigate interesting mathematical questions with computer algebra systems without knowing the answers beforehand.