Wallis's conical edge
Appearance
![](http://upload.wikimedia.org/wikipedia/commons/thumb/b/b3/Wallis%27s_conical_edge.svg/350px-Wallis%27s_conical_edge.svg.png)
![](http://upload.wikimedia.org/wikipedia/commons/4/4a/Wallis_Conical_Edge.gif)
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]
See also
[edit]References
[edit]- ^ 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)
External links
[edit]- Wallis's Conical Edge from MathWorld.