Homework Statement
e1, e2 are vector parameters such that dot(e1, e2) = \delta_{ij}
c is another vector parameter
r, s are real valued parameters
\beta is a unit speed curve in E3
\gamma is a parametrization of a circle
\gamma (s) = \overbar{c} + rcos (\frac{s}{r})\overbar{e_1} + rsin...