Derek Lerner - Asvirus 58, 2015 Ink on paper 44 x 30 in
Asvirus 2 - 2010 Ink and gesso on paper mounted to panel 48 x 23.5 in
Derek Lerner | Artwork | Saatchi Art
Miralles Lines, Curvature Analysis through Graphic Differential Geometry 3: Tangent & Normal Notation. In order to find a common notation that can describe all three curves, a notation of lines tangent and normal to the curves is introduced. Each tangent vector describes the trajectory at an instant along the curve. Each normal vector is extended to the center of the circle that best approximates the radius of curvature at that instant.