A type of point at infinity in which parallel lines in the hyperbolic plane intersect at infinity in one direction, while diverging from one another in the other.
Ideal Point
See also
HyperparallelExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Ideal Point." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/IdealPoint.html