Demonstrating Whitney fold by the normal bundle to a parabola curve		The critical distance points between two surfaces. The red-colored pairs of points are of minimal distances.
	degenerate (formally A_3) maximal and minimal distances to an ellipse		The Surface-Surface Intersection computed from a nonlinear constraint system, i.e. the zero set of a map from a 4-space to 3-space.
	The flecnodal curve. Note that the base surface has two C1and one C0breakings.		The critical distance points between two planar curves.
	Computing the evolute of an ellipse using a dramatic degree reduction stragety as prensented in one of our papers.		The extended evolute of a C^1 curve with 8 breaks.
	Evolute of a C^2 curve and its curvature plot		curvature critical points
	computing zeros of curvature derivative: tranditional approach		computing zeros of curvature derivative: our approach.
	Tracking intersection curves of two deforming surfaces.		Tracking critical distances between a moving point and a C^ curve.