NoncentralChiSquareDistribution[\[Nu], \[Lambda]] represents a noncentral \[Chi]^2 distribution with \[Nu] degrees of freedom and noncentrality parameter \[Lambda].
NoncentralStudentTDistribution[\[Nu], \[Delta]] represents a noncentral Student t distribution with \[Nu] degrees of freedom and noncentrality parameter \[Delta].
PolyaAeppliDistribution[\[Theta], p] represents a Polya\[Dash]Aeppli distribution with shape parameters \[Theta] and p.
SinghMaddalaDistribution[q, a, b] represents the Singh\[Dash]Maddala distribution with shape parameters q and a and scale parameter b.
Tan
(Built-in Mathematica Symbol) Tan[z] gives the tangent of z.
Legend
(Plot Legends Package Symbol) Legend[{{box_1, text_1}, ...}, options] generates a legend with the specified boxes and text.Legend[func, num, options] generates a legend by applying func to numbers between ...
ConditionalExpression[expr, cond] is a symbolic construct that represents the expression expr when the condition cond is True.
ExpIntegralE[n, z] gives the exponential integral function E_n (z).
Floor
(Built-in Mathematica Symbol) Floor[x] gives the greatest integer less than or equal to x. Floor[x, a] gives the greatest multiple of a less than or equal to x.
FourierSequenceTransform[expr, n, \[Omega]] gives the Fourier sequence transform of expr.FourierSequenceTransform[expr, {n_1, n_2, ...}, {\[Omega]_1, \[Omega]_2, ...}] gives ...