GraphComplement[g] gives the complement of graph g.
GrayCodeSubsets[l] constructs a binary reflected Gray code on set l.
Heapify
(Combinatorica Package Symbol) Heapify[p] builds a heap from permutation p.
HeapSort[l] performs a heap sort on the items of list l.
HerschelGraph returns a graph object that represents a Herschel graph.
IcosahedralGraph returns the graph corresponding to the icosahedron, a Platonic solid.
InvolutionQ[p] yields True if permutation p is its own inverse.
LastLexicographicTableau[p] constructs the last Young tableau with shape described by partition p.
LowerLeft is a value that options VertexNumberPosition, VertexLabelPosition, and EdgeLabelPosition can take on in ShowGraph.
LowerRight is a value that options VertexNumberPosition, VertexLabelPosition, and EdgeLabelPosition can take on in ShowGraph.