LabelingFunction is an option for charting functions that specifies a function to apply to determine labeling of chart elements.
LabelStyle is an option for formatting and related constructs that specifies the style to use in displaying their label-like elements.
LandauDistribution[\[Mu], \[Sigma]] represents a Landau distribution with location parameter \[Mu] and scale parameter \[Sigma].
Language is a global option that specifies the language in which menus, dialog boxes, error messages, and help files are displayed.
LaplaceDistribution[\[Mu], \[Beta]] represents a Laplace double-exponential distribution with mean \[Mu] and scale parameter \[Beta].
LaplaceTransform[expr, t, s] gives the Laplace transform of expr. LaplaceTransform[expr, {t_1, t_2, ...}, {s_1, s_2, ...}] gives the multidimensional Laplace transform of ...
Large
(Built-in Mathematica Symbol) Large is a style or option setting that specifies that objects should be large.
Larger
(Built-in Mathematica Symbol) Larger is a style or option setting that specifies that objects should be larger.
LatticeData[lattice, " property"] gives the specified property for a lattice.LatticeData[n] gives a list of named lattices of dimension n.
LatticeReduce[{v_1, v_2, ...}] gives a reduced basis for the set of vectors v_i.