DirichletTransform[expr, n, s] gives the Dirichlet transform of expr with respect to n.
DisplayForm[expr] prints with low-level boxes inside expr shown in explicit two-dimensional or other form.
Except
(Built-in Mathematica Symbol) Except[c] is a pattern object which represents any expression except one that matches c. Except[c, p] represents any expression that matches p but not c.
Hyperfactorial[n] gives the hyperfactorial function H(n).
InverseGudermannian[z] gives the inverse Gudermannian function gd -1 (z).
Line
(Built-in Mathematica Symbol) Line[{pt_1, pt_2, ...}] is a graphics primitive that represents a line joining a sequence of points. Line[{{pt_11, pt_12, ...}, {pt_21, ...}, ...}] represents a collection of ...
PlotRangeClipping is an option for graphics functions that specifies whether graphics objects should be clipped at the edge of the region defined by PlotRange, or should be ...
PrimitiveRoot[n] gives the smallest primitive root of n.
Raster
(Built-in Mathematica Symbol) Raster[{{a_11, a_12, ...}, ...}] is a two-dimensional graphics primitive which represents a rectangular array of gray cells. Raster[{{{r_11, g_11, b_11}, ...}, ...}] ...
RiemannR[x] gives the Riemann prime counting function R(x).