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X(1), X(2), X(6), X(32), X(76), X(98), X(385), X(511), X(694), X(1423), X(2319), X(3186) Infinite points of the Steiner ellipses 

See Clark Kimberling, Cubics Associated with Triangles of Equal Areas, Forum Geometricorum, vol.1, pp.161171, 2000. See also K354, K355 and CL041. K128 is a member of the ThomsonGrebe pencil. See Table 13. It is a Kiepert AntiCevian Mate of K020. See Table 32. It is a cubic anharmonically equivalent to K020 as in Table 66. The isotomic transform of K128 is K738 and its GHirst transform is K739. The symbolic substitution SS{a > √a} transforms K128 into K323. Locus properties :

