In geometry, an endpoint is one of the two points at the boundary of a line segment.
In analysis, an endpoint is one of the two points at the boundary of a closed interval or the single point at the closed end of a half-closed interval.
In graph theory, an endpoint is a vertex of a graph that has vertex degree 1 (Harary 1994, p. 15).
See also
Closed Interval, Interval, Half-Closed Interval, Isolated Point, Line Segment, Point, Root Vertex
Explore with Wolfram|Alpha
References
Harary, F. Graph Theory. Reading, MA: Addison-Wesley, 1994.
Referenced on Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Endpoint." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Endpoint.html