IntersectConic Command

IntersectConic( <Plane>, <Quadric> ): Intersects the plane with the quadric.
IntersectConic( <Quadric>, <Quadric> ): Returns a conic defined in case where the intersection is actually a conic.

IntersectConic(sphere1, sphere2) creates the intersection conic of two spheres.

See also Intersect and IntersectPath commands.