FindGeneratingFunction[{a_1, a_2, ...}, x] attempts to find a simple generating function in x whose n\[Null]^th series coefficient is a_n.FindGeneratingFunction[{{n_1, a_1}, ...
FiniteAbelianGroupCount[n] gives the number of finite Abelian groups of order n.
FrobeniusSolve[{a_1, ..., a_n}, b] gives a list of all solutions of the Frobenius equation a_1 x_1 + ... + a_n x_n = b.FrobeniusSolve[{a_1, ..., a_n}, b, m] gives at most m ...
GainPhaseMargins[sys] gives the gain and phase margins of the linear time-invariant system sys.
GraphQ
(Built-in Mathematica Symbol) GraphQ[g] yields True if g is a valid Graph object and False otherwise.
GraphStyle is an option to Graph and related objects that specifies styles to use for the different graph elements.
GroupSetwiseStabilizer[group, {p_1, ..., p_n}] returns the subgroup of group for which the images of the points p_i are still in the list {p_1, ..., p_n}.
HankelH1[n, z] gives the Hankel function of the first kind H_n^(1)(z).
HurwitzLerchPhi[z, s, a] gives the Hurwitz\[Dash]Lerch transcendent \[CapitalPhi](z, s, a).
HurwitzZeta[s, a] gives the Hurwitz zeta function \[Zeta](s, a).