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

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References

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