UndirectedQ[g] yields True if graph g is undirected.
UpperLeft is a value that options VertexNumberPosition, VertexLabelPosition, and EdgeLabelPosition can take on in ShowGraph.
UpperRight is a value that options VertexNumberPosition, VertexLabelPosition, and EdgeLabelPosition can take on in ShowGraph.
WaltherGraph returns the Walther graph.
Weak
(Combinatorica Package Symbol) Weak is an option to ConnectedQ that seeks to determine if a directed graph is weakly connected.
Quaternions is an option for PrimeQ which specifies whether factorization should be done over the quaternions.
UnitQuaternions gives a list of the 24 units in the ring of integer quaternions.
BakersDozen is a unit multiplier.
Bit
(Units Package Symbol) Bit is the fundamental unit of information.
Gross
(Units Package Symbol) Gross is a unit multiplier.