Characters["string"] gives a list of the characters in a string.
CirculantGraph[n, j] gives the circulant graph with n vertices and jump j C_n (j).CirculantGraph[n, {j_1, j_2, ...}] gives the circulant graph with n vertices and jumps j_1, ...
CompleteKaryTree[n] gives the complete binary tree with n levels.CompleteKaryTree[n, k] gives the complete k-ary tree with n levels.
ComposeSeries[series_1, series_2, ...] composes several power series.
DeBruijnGraph[m, n] gives the n-dimensional De Bruijn graph with m symbols.DeBruijnGraph[m, n, type] gives the De Bruijn graph with connectivity given by type.
DistributionChart[{data_1, data_2, ...}] makes a distribution chart with a distribution symbol for each data_i.DistributionChart[{..., w_i[data_i, ...], ..., w_j[data_j, ...
DualSystemsModel[ss] gives the dual of the StateSpaceModel object ss.
EdgeRules[g] gives the list of edge rules for the graph g.
FactorList[poly] gives a list of the factors of a polynomial, together with their exponents.
GraphDiameter[g] gives the maximum eccentricity of the vertices in the graph g.