For a Plane Curve, the tangential angle is defined by
(1) |
(2) |
(3) |
See also Arc Length, Curvature, Plane Curve, Radius of Curvature, Torsion (Differential Geometry)
References
Gray, A. ``The Turning Angle.'' §1.6 in Modern Differential Geometry of Curves and Surfaces. Boca Raton, FL: CRC Press, pp. 13-14, 1993.