TOPICS
Algebra
Applied Mathematics
Calculus and Analysis
Discrete Mathematics
Foundations of Mathematics
Geometry
History and Terminology
Number Theory
Probability and Statistics
Recreational Mathematics
Topology
Alphabetical Index
New in MathWorld
Geometry
Plane Geometry
Triangles
Triangle Points
Twin Points
References
Gallatly, W.
The Modern Geometry of the Triangle, 2nd ed.
London: Hodgson, p. 62, 1913.