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K1243

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X(1), X(2), X(3), X(6), X(57), X(672), X(949), X(1193), X(2221), X(4185), X(14551), X(41534), X(45127)

X(45782) → X(45787)

Geometric properties :

Let f be the Cundy-Parry like transformation, mentioned in Table 30, that maps M onto the intersection of the lines GM and KM*, where M* is the isogonal conjugate of M. See further details in CL061.

f transforms the Feuerbach hyperbola into K1243, a nodal cubic with node K.