next surface | previous surface | 2D curves | 3D curves | surfaces | fractals | polyhedra |

CONICAL POINT of a surface

See http://www.jp-petit.org/Extensions/dcuspi/dcuspi.htm |

A conical point of a surface is a point *M* such that there exists a cone with vertex *M* tangent at *M* to the surface.

See for example the Cayley surface.

next surface | previous surface | 2D curves | 3D curves | surfaces | fractals | polyhedra |

© Robert FERRÉOL 2017