[[File:Mandart inellipse - resized.svg|thumb|300px|
thumb|300px|
In geometry, the (from German: middle point) of a triangle is a triangle center: a point defined from the triangle that is invariant under Euclidean transformations of the triangle. It was identified in 1836 by Christian Heinrich von Nagel as the symmedian point of the excentral triangle of the given triangle.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).