LegendreQ[n, z] gives the Legendre function of the second kind Q_n (z). LegendreQ[n, m, z] gives the associated Legendre function of the second kind Q_n^m(z).
LetterQ
(Built-in Mathematica Symbol) LetterQ[string] yields True if all the characters in the string are letters, and yields False otherwise.
Level
(Built-in Mathematica Symbol) Level[expr, levelspec] gives a list of all subexpressions of expr on levels specified by levelspec. Level[expr, levelspec, f] applies f to the sequence of subexpressions.
Likelihood[dist, {x_1, x_2, ...}] gives the likelihood function for observations x_1, x_2, ... from the distribution dist.
LinearRecurrence[ker, init, n] gives the sequence of length n obtained by iterating the linear recurrence with kernel ker starting with initial values ...
ListContourPlot3D[array] generates a contour plot from a three-dimensional array of values. ListContourPlot3D[{{x_1, y_1, z_1, f_1}, {x_2, y_2, z_2, f_2}, ...}] generates a ...
ListDeconvolve[ker, list] gives a deconvolution of list using kernel ker.
LogIntegral[z] is the logarithmic integral function li(z).
MakeBoxes[expr, form] is the low-level function used in Mathematica sessions to convert expressions into boxes. MakeBoxes[expr] is the function to convert expr to ...
Manipulator[x] represents a manipulator with setting x in the range 0 to 1. Manipulator[Dynamic[x]] takes the setting to be the dynamically updated current value of x, with ...