r157	centroid
r321	perspective, Tarry point
r322	orthologic triangles, third Brocard point, circumcenter
r1404	antimedial triangle, perspective, medial triangle, Wallace hyperbola
r1405	antimedial triangle, orthologic triangles, cevian quotient, centroid, circumcenter, symmedian point
r1406	antimedial triangle, perspective, point X(262)