A vertex is a point where lines, edges, or rays meet or intersect. In geometry, it’s where sides of polygons converge.
In graph theory, vertices represent objects, while edges connect them in graphs. In optics, it’s where the principal axis of a lens intersects. This term may also refer to the topmost point of a structure in anatomy.
Across different fields, vertices play a crucial role in representing connections, intersections, and the structure of objects, making them a fundamental concept for geometry, graph theory, and various other disciplines.