Confocal Conics


Confocal conics are conic sections sharing a common focus. Any two confocal central conics are orthogonal (Ogilvy 1990, p. 77).

See also

Confocal Ellipses, Confocal Ellipsoidal Coordinates, Confocal Hyperbolas, Confocal Parabolas, Confocal Quadrics, Conic Section, Focus

Explore with Wolfram|Alpha


Ogilvy, C. S. Excursions in Geometry. New York: Dover, pp. 77-78, 1990.Wells, D. The Penguin Dictionary of Curious and Interesting Geometry. London: Penguin, pp. 39-40, 1991.

Referenced on Wolfram|Alpha

Confocal Conics

Cite this as:

Weisstein, Eric W. "Confocal Conics." From MathWorld--A Wolfram Web Resource.

Subject classifications