VertexColor is an option that allows the user to associate colors with vertices.
VertexLabel is an option that can take on values True or False, allowing the user to set and display vertex labels.
VertexNumber is an option that can take on values True or False. This can be used in ShowGraph to display or suppress vertex numbers.
VertexWeight is an option that allows the user to associate weights with vertices.
WeightRange is an option to the functions SetEdgeWeights and SetVertexWeights that gives the range for these weights.
NaN
(Computer Arithmetic Package Symbol) NaN is the symbol used by the functions in the Computer Arithmetic Package to represent a nonrepresentable number.
RoundToInfinity is a setting for the option RoundingRule of SetArithmetic that specifies rounding to the nearest representable number and, in the case of a tie, rounding away ...
BesselSimplify[expr] transforms Bessel functions in expr, trying to either decrease the number of Bessel functions, or convert Bessel functions into more elementary functions.
GammaSimplify[expr] transforms gamma functions in expr, trying to either decrease the number of gamma functions, or convert combinations of them into more elementary ...
PolyGammaSimplify[expr] transforms polygamma functions in expr, trying to either decrease the number of polygamma functions, or convert combinations of them into more ...