I got following Kimberling centers inside GHNa: X(1)-incenter, X(2)-centroid, X(5)-NPC center, X(6)-Symmedian point, X(7)-Gergonne point and Kimberling center outside GHNa is X(11)-Feuerbach Point.
Let H=X(4)-Orthocenter of ABC. A 1 B 1 C 1 cevian triangle of H. B1 A , C1 A are reflections of B1, C1 on A. L A , line through B1 A , C1...
I got following Kimberling centers inside GHNa: X(1)-incenter, X(2)-centroid, X(5)-NPC center, X(6)-Symmedian point, X(7)-Gergonne point and Kimberling center outside GHNa is X(11)-Feuerbach Point.
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