A shape described by the intersection between a double napped cone, and a Plane.
| Shape | Eccentricity | Plane Intersection | Degenerate Form |
|---|
| Circle | | Parallel to Cone Base | Point |
| Ellipse | | Slope < Cone Side | Point |
| Parabola | | Slope Cone Side | Line |
| Hyperbola | | Slope > Cone Side | X |