Curvature, Principal Unit Normal Vector - Calculus 3

This video explains how to obtain the curvature equation and principal unit normal vector for plane and space curves using the parameter t or the arc length parameter, the osculating circle, and also provides worked example practice problems.

0:00 Curvature of a plane curve
2:15 Principal unit normal vector
6:24 Osculating circle
7:45 Curvature and normal vector for space curves
10:16 Worked examples