- Let ABC be a triangle, IaIbIc the excentral triangle, P a point
and A'B'C' the cevian triangle of P.
Denote A* = B'Ic /\ C'Ib, B* = C'Ia /\ A'Ic, C* = A'Ib /\ B'Ia
Which is the locus of P such that
1. ABC, A*B*C*
2. A'B'C', A*B*C*
- PS see special caseAPH(signed segments) ?Let ABC be a triangle and P a pointWhich is the locus of P such that PA + PB + PC = 0