JacobiCN[u, m] gives the Jacobi elliptic function cn(u | m).
JacobiDN[u, m] gives the Jacobi elliptic function dn(u | m).
JacobiDS[u, m] gives the Jacobi elliptic function ds(u | m).
JacobiND[u, m] gives the Jacobi elliptic function nd(u | m).
JacobiSD[u, m] gives the Jacobi elliptic function sd(u | m).
Labeled
(Built-in Mathematica Symbol) Labeled[expr, lbl] displays expr labeled with lbl. Labeled[expr, lbl, pos] places lbl at a position specified by pos. Labeled[expr, {lbl_1, lbl_2, ...}, {pos_1, ...}] places ...
MapIndexed[f, expr] applies f to the elements of expr, giving the part specification of each element as a second argument to f. MapIndexed[f, expr, levelspec] applies f to ...
Minors
(Built-in Mathematica Symbol) Minors[m] gives the minors of a matrix m. Minors[m, k] gives the k\[Null]\[Null]^th minors.
MixtureDistribution[{w_1, ..., w_n}, {dist_1, ..., dist_n}] represents a mixture distribution whose CDF is given as a sum of the CDFs of the component distributions dist_i, ...
PowerExpand[expr] expands all powers of products and powers. PowerExpand[expr, {x_1, x_2, ...}] expands only with respect to the variables x_i.