Home page  Catalogue  Classes  Tables  Glossary  Notations  Links  Bibliography  Thanks  Downloads  Related Curves 

X(6), X(74), X(511), X(1495), X(1976), X(13414), X(13415) 

See the notations and the general properties at CL030. The isogonal transform of K223 is K953 = nK0(X2, X525) = cK(#X2, X525). K223 is also the SS{a > a^2} image of K040. (Comments below by Wilson Stothers) C(R) is the Jerabek Hyperbola. R* = X(112). T(R*) is the line X(6)X(25). K223 is :
K223 contains :
The nodal tangents are
The pivotal conic touches the Lemoine axis at R. This identifies it as an inconic of the tangential triangle with center X(924). 
