HamiltonianCycles[g, n] gives a list of n Hamiltonian cycles.HamiltonianCycles[g] gives a list of one Hamiltonian cycle.
PseudoDiameter[g] give the pseudo-diameter of the undirected graph g, and the two vertices that achieve this diameter.
LyapunovSolve[a, c] finds a solution x of the matrix Lyapunov equation a.x + x.a\[ConjugateTranspose] == c.LyapunovSolve[a, b, c] solves a.x + x.b == c.LyapunovSolve[{a, d}, ...
HilbertMatrix[n] gives the n*n Hilbert matrix with elements of the form 1/(i + j - 1).HilbertMatrix[{m, n}] gives the m*n Hilbert matrix.
HITSCentrality[g] gives a list of authority and hub centralities for the vertices in the graph g.
KatzCentrality[g, \[Alpha]] gives a list of Katz centralities for the vertices in the graph g and weight \[Alpha].KatzCentrality[g, \[Alpha], \[Beta]] gives a list of Katz ...
LetterQ
(Built-in Mathematica Symbol) LetterQ[string] yields True if all the characters in the string are letters, and yields False otherwise.
PageRankCentrality[g, \[Alpha]] gives a list of page-rank centralities for the vertices in the graph g and weight \[Alpha].PageRankCentrality[g, \[Alpha], \[Beta]] gives a ...
PermutationList[perm] returns a permutation list representation of permutation perm.PermutationList[perm, len] returns a permutation list of length len.
TetGenGetFaceMarkers[expr] returns the face markers for a TetGen expression.