Thomson cubic

In geometry, the Thomson cubic of a triangle is the locus of centers of circumconics whose normals at the vertices are concurrent.

The Thomson cubic (black curve) contains the point X whose isogonal conjugate (X') is on the line X(2)-X.

See also

• Cubic plane curve § Thomson cubic

References

• Weisstein, Eric W. "Thomson cubic". MathWorld.
• Viktor Vasilʹevich Prasolov: Essays on numbers and figures. AMS, 2000, ISBN 9780821819449, p. 73

External links

• K002 (Thomson cubic) at Cubics in the Triangle Plane