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

too complicated to be written here. Click on the link to download a text file. 

X(3), X(4), X(13), X(14), X(30), X(265), X(1511)* 

For M on the Euler line of ABC, let (H) be the rectangular circumhyperbola through M and (L) the line passing through X(265) and the reflection of O in M. K638 is the locus of the intersections of (H) and (L) when M traverses (E). If X(265) is replaced by X(399), we obtain the Neuberg cubic K001.
The isogonal transform of K638 is K639. 
