CGAL::lift_to_paraboloid

#include <CGAL/constructions_d.h>

Point_d<R> lift_to_paraboloid ( Point_d<R> p)
returns the projection of p = (x0,...,xd-1) onto the paraboloid of revolution which is the point (p0, ...,pd-1, 0 i < dpi2) in (d+1)-space.