MathieuCharacteristicExponent[a, q] gives the characteristic exponent r for Mathieu functions with characteristic value a and parameter q.

TaggingRules is an option for selections that specifies a list of strings to be associated with a selection.

VerifyTestAssumptions is an option to LocationTest and similar functions that controls which assumptions to verify through diagnostic tests.

SQLBinary[data] represents raw binary data that can be stored in a database.

CAssign[lhs, rhs] is a symbolic representation of an assignment statement.

The Developer Utilities Package includes functions that directly access specific internal algorithms and capabilities of Mathematica that are normally used only as part of ...

Mathematica WDX data format. Used by the Mathematica system for storing and exchanging expressions and data. WDX is an acronym derived from Wolfram Data Exchange. Binary ...

FourierCosCoefficient[expr, t, n] gives the n\[Null]^th coefficient in the Fourier cosine series expansion of expr.FourierCosCoefficient[expr, {t_1, t_2, ...}, {n_1, n_2, ...

Round[x] gives the integer closest to x. Round[x, a] rounds to the nearest multiple of a.

# represents the first argument supplied to a pure function. # n represents the n\[Null]\[Null]^th argument.