Projectivity Computes the image of an object for a projectivity. Syntax projectivity(Matrix, Object) Description projectivity(Matrix, Object) Computes the image of the object for the projectivity given its matrix. The allowed objects are: Point, Segment, Triangle, Polygon, Polygonal, Line, Plane, Polyhedra, Quadric. Related functions Symmetry, Conic Table of Contents Syntax Description Related functions