r429	Weill point, incircle, inverse points
r430	antiorthic axis
r431	far-out point, intouch triangle
r432	Feuerbach point, Gergonne line
r303	incenter, intouch triangle
r193	Weill point, Bevan-Schröder point, Bevan point, poristic triangles, point X(65), point X(55), point X(56)