Community Tip - Did you get called away in the middle of writing a post? Don't worry you can find your unfinished post later in the Drafts section of your profile page. X
Do you know these curves? I cannot find any information ;-(
If we nave two points (focuses) we have an ellipse, a hyperbola, a Cassini oval or Circles of Apollonius
But we have one point and one line!
