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First de Villiers Point


The first de Villiers point is the perspector of the reference triangle and its BCI triangle, which is Kimberling center X_(1127) and has triangle center function

 alpha_(1127)=csc(3/4A)sin(1/4A).

See also

de Villiers Points, Second de Villiers Point

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References

de Villiers, M. "A Dual to Kosnita's Theorem." Math. Info. Quart. 6, 169-171, 1996. http://mzone.mweb.co.za/residents/profmd/kosnita.htm.

Referenced on Wolfram|Alpha

First de Villiers Point

Cite this as:

Weisstein, Eric W. "First de Villiers Point." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/FirstdeVilliersPoint.html

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