ItemStyle is an option for Grid, Column, and related constructs that specifies styles to use for items.
LandauDistribution[\[Mu], \[Sigma]] represents a Landau distribution with location parameter \[Mu] and scale parameter \[Sigma].
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).
LogIntegral[z] is the logarithmic integral function li(z).
MapAt
(Built-in Mathematica Symbol) MapAt[f, expr, n] applies f to the element at position n in expr. If n is negative, the position is counted from the end. MapAt[f, expr, {i, j, ...}] applies f to the part of ...
Mod
(Built-in Mathematica Symbol) Mod[m, n] gives the remainder on division of m by n. Mod[m, n, d] uses an offset d.
Mouseover[expr, over] represents an object that displays as over when the mouse pointer is over it, and as expr otherwise.
OpenerView[{expr_1, expr_2}] represents an object which displays as an opener, together with expr_1 if the opener is closed, and both expr_1 and expr_2 if it is ...
PseudoInverse[m] finds the pseudoinverse of a rectangular matrix.
RuntimeOptions is an option for Compile that specifies runtime settings for the compiled function it creates.