Definition:Dandelin Spheres/Hyperbola

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Definition

Let $\CC$ be a double napped right circular cone with apex $O$.

Let $\PP$ be a plane which intersects $\CC$ to form a hyperbola.


The Dandelin spheres $\SS$ and $\SS'$ appear as follows:


Dandelin-spheres-hyperbola.png


Also see

  • Results about Dandelin spheres can be found here.


Source of Name

This entry was named for Germinal Pierre Dandelin.


Sources