Vertex Count
The vertex count of a graph 
, commonly denoted 
or 
, is the number of vertices in 
. In other words, it is the cardinality of the vertex
set.
The vertex count of a graph is implemented in the Wolfram Language as VertexCount[g]. The numbers of vertices for many named graphs are given by the command GraphData[graph, "VertexCount"].
See also
Edge Count, Graph Vertex, Vertex Set
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Cite this as:
Weisstein, Eric W. "Vertex Count." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/VertexCount.html