GroupActionBase is an option to specify a base for a group.
GroupElementQ[group, g] returns True if the object g is an element of group and False otherwise.
HeavisideLambda[x] represents the triangle distribution \[CapitalLambda](x) which is nonzero for |x| < 1.HeavisideLambda[x_1, x_2, ...] represents the multidimensional ...
HoldComplete[expr] shields expr completely from the standard Mathematica evaluation process, preventing even upvalues associated with expr from being used.
HoldForm[expr] prints as the expression expr, with expr maintained in an unevaluated form.
HornerForm[poly] puts the polynomial poly in Horner form.HornerForm[poly, vars] puts poly in Horner form with respect to the variable or variable list ...
x++ increases the value of x by 1, returning the old value of x.
InverseDistanceTransform[image] gives the inverse distance transform of image, returning the result as a binary image.
KroneckerSymbol[n, m] gives the Kronecker symbol (n/m).
LeviCivitaTensor[d] gives the d-dimensional Levi-Civita totally antisymmetric tensor.