GraphQ
(Built-in Mathematica Symbol) GraphQ[g] yields True if g is a valid Graph object and False otherwise.
HalfNormalDistribution[\[Theta]] represents a half-normal distribution with scale inversely proportional to parameter \[Theta].
HaradaNortonGroupHN[] represents the sporadic simple Harada\[Dash]Norton group HN.
HoldAllComplete is an attribute which specifies that all arguments to a function are not to be modified or looked at in any way in the process of evaluation.
ImagePadding is an option for graphics functions that specifies what absolute extra padding should be left for extended objects such as thick lines and annotations such as ...
InterpretationBox[boxes, expr] is a low-level box construct that displays as boxes but is interpreted on input as expr.
IntervalIntersection[interval_1, interval_2, ...] gives the interval representing all points common to each of the interval_i.
JaccardDissimilarity[u, v] gives the Jaccard dissimilarity between Boolean vectors u and v.
JacobiSymbol[n, m] gives the Jacobi symbol (n/m).
JankoGroupJ4[] represents the sporadic simple Janko group J_4.