V
(Combinatorica Package Symbol) V[g] gives the order or number of vertices of the graph g.
WeaklyConnectedComponents[g] gives the weakly connected components of directed graph g as lists of vertices.
WeightingFunction is an option to the functions SetEdgeWeights and SetVertexWeights that tells the functions how to compute edge weights and vertex weights, respectively.
WeightRange is an option to the functions SetEdgeWeights and SetVertexWeights that gives the range for these weights.
Wheel
(Combinatorica Package Symbol) Wheel[n] constructs a wheel on n vertices, which is the join of CompleteGraph[1] and Cycle[n - 1].
WriteGraph[g, f] writes graph g to file f using an edge list representation.
Zoom
(Combinatorica Package Symbol) Zoom[{i, j, k, ...}] is a value that the PlotRange option can take on in ShowGraph. Setting PlotRange to this value zooms the display to contain the specified subset of ...
CreateNotationRules is a possible value for the Action option to Notation, Symbolize and InfixNotation.
RemoveNotationRules is a possible value for the Action option to Notation, Symbolize and InfixNotation.
Mathematica's unified symbolic architecture allows arbitrary extensibility in the output and input of notation.