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Wallis's conical edge

From Wikipedia, the free encyclopedia

In geometry, Wallis's conical edge is a ruled surface given by the parametric equations

where a, b and c are constants.

Wallis's conical edge is also a kind of right conoid. It is named after the English mathematician John Wallis, who was one of the first to use Cartesian methods to study conic sections.[1]

Figure 2. Wallis's Conical Edge with a = 1.01, b = c = 1
Figure 1. Wallis's Conical Edge with a = b = c = 1

See also

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References

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  1. ^ Abbena, Elsa; Salamon, Simon; Gray, Alfred (21 June 2006). Modern Differential Geometry of Curves and Surfaces with Mathematica, Third Edition. ISBN 9781584884484.
  • A. Gray, E. Abbena, S. Salamon, Modern differential geometry of curves and surfaces with Mathematica, 3rd ed. Boca Raton, Florida:CRC Press, 2006. [1] (ISBN 978-1-58488-448-4)
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