DiscreteDelta[n_1, n_2, ...] gives the discrete delta function \[Delta] (n_1, n_2, ...), equal to 1 if all the n_i are zero, and 0 otherwise.
DistributionParameterQ[dist] yields True if dist is a valid distribution, and yields False otherwise.
ExactNumberQ[expr] returns True if expr is an exact real or complex number, and returns False otherwise.
FiniteAbelianGroupCount[n] gives the number of finite Abelian groups of order n.
InexactNumberQ[expr] returns True if expr is an inexact real or complex number, and returns False otherwise.
IsotopeData[{Z, A}, " property"] gives the value of the specified property for the isotope with atomic number Z and mass number A.IsotopeData["name", " property"] gives the ...
JacobiSymbol[n, m] gives the Jacobi symbol (n/m).
JoinForm[type] is a graphics directive that specifies what type of joins should be used to connect segments of lines, tubes, edges, and related primitives.
LegendAppearance is an option for charting functions that specifies the appearance of any legends that are generated.
PriceGraphDistribution[n, k, a] represents a de Solla Price graph distribution for n-vertex graphs where a new vertex with k edges is added at each step using attractiveness ...