LowerRightArrow[x, y, ...] displays as x \[LowerRightArrow] y \[LowerRightArrow] ....
LowerTriangularize[m] gives a matrix in which all but the lower triangular elements of m are replaced with zeros. LowerTriangularize[m, k] replaces with zeros only the ...
LyonsGroupLy[] represents the sporadic simple Lyons group Ly.
ManhattanDistance[u, v] gives the Manhattan or "city block" distance between vectors u and v.
MannWhitneyTest[{data_1, data_2}] tests whether the medians of data_1 and data_2 are equal.MannWhitneyTest[dspec, \[Mu]_0] tests the median difference against ...
MathieuCharacteristicA[r, q] gives the characteristic value a_r for even Mathieu functions with characteristic exponent r and parameter q.
MathieuCharacteristicB[r, q] gives the characteristic value b_r for odd Mathieu functions with characteristic exponent r and parameter q.
MeanShiftFilter[image, r, d] replaces each pixel with the mean of the pixels in a range-r neighborhood and whose value is within a distance d.MeanShiftFilter[array, r, d] ...
MemberQ
(Built-in Mathematica Symbol) MemberQ[list, form] returns True if an element of list matches form, and False otherwise. MemberQ[list, form, levelspec] tests all parts of list specified by levelspec.
MenuPacket[integer, string] is a MathLink packet indicating a menu request with title string.