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GeezerVison is showing mathworld.wolfram.com — Double Cone -- from Wolfram MathWorld

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Double Cone

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DoubleCone

A double cone consists of two cones placed apex to apex. The double cone is given by algebraic equation

(z^2)/(c^2)=(x^2+y^2)/(a^2).

See also

Bicone, Cone, Cone Graph, Nappe

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References

Gellert, W.; Gottwald, S.; Hellwich, M.; Kästner, H.; and Künstner, H. (Eds.). VNR Concise Encyclopedia of Mathematics, 2nd ed. New York: Van Nostrand Reinhold, p. 193, 1989.

Referenced on Wolfram|Alpha

Double Cone

Cite this as:

Weisstein, Eric W. "Double Cone." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/DoubleCone.html

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