{{Short description|Set of points associated with a triangle's circumconic centers}} {{inline |date=May 2024}} thumb|upright=2.5|The Thomson cubic (black curve) contains the point ''X'' whose isogonal conjugate (''X{{'}}'') is on the line ''X''(2)-''X''. In geometry, the '''Thomson cubic''' of a triangle is the locus of centers of circumconics whose normals at the vertices are concurrent.
==See also== * {{slink|Cubic plane curve#Thomson cubic}}
==References== *{{mathworld|title=Thomson cubic|urlname=ThomsonCubic}} * Viktor Vasilʹevich Prasolov: ''Essays on numbers and figures''. AMS, 2000, ISBN 9780821819449, p. 73
==External links== * [http://bernard.gibert.pagesperso-orange.fr/Exemples/k002.html K002 (Thomson cubic) at Cubics in the Triangle Plane]
Category:Curves defined for a triangle