Given a center , the anticevian triangle is defined as the Triangle with Vertices , , and . If is the Cevian Triangleof and is an anticevian triangle, then and are Harmonic Conjugate Points with respect to and.
See also Cevian Triangle
References
Kimberling, C. ``Central Points and Central Lines in the Plane of a Triangle.'' Math. Mag.67, 163-187, 1994.