GammaRegularized[a, z] is the regularized incomplete gamma function Q(a, z).
RamanujanTauZ[t] gives the Ramanujan tau Z-function Z(t).
SetOptions[s, name_1 -> value_1, name_2 -> value_2, ...] sets the specified default options for a symbol s. SetOptions[stream, ...] or SetOptions["name", ...] sets options ...
PlotDirection is an option for PairwiseScatterPlot which specifies the direction in which scatter plots are generated.
DSolve can find solutions for most of the standard linear second-order ODEs that occur in applied mathematics. Here is the solution for Airy's equation. Here is a plot that ...
FractionalPart[x] gives the fractional part of x.
SymmetricPolynomial[k, {x_1, ..., x_n}] gives the k\[Null]^th elementary symmetric polynomial in the variables x_1, ..., x_n.
Mathematica does operations like numerical integration very differently from the way it does their symbolic counterparts. When you do a symbolic integral, Mathematica takes ...
KumaraswamyDistribution[\[Alpha], \[Beta]] represents a Kumaraswamy distribution with shape parameters \[Alpha] and \[Beta].
AlignmentPoint is an option which specifies how objects should by default be aligned when they appear in Inset.