L4_A

       1. Derivation: Curvature and Torsion of a Curve

           NOT Parametrized by Arc Length

L4_B

       1. Derivation: Curvature and Torsion of a Curve
           NOT Parametrized by Arc Length (cont.)
       2. Example: Curve in R^2

L4_C

       1. Definition: Rigid Motion
       2. Theorem: Fundamental Theorem of the Local Theory of Curves