ZernikeR (Built-in Mathematica Symbol)

ZernikeR[n, m, r] gives the radial Zernike polynomial R_n^m(r).

HoldFirst (Built-in Mathematica Symbol)

HoldFirst is an attribute which specifies that the first argument to a function is to be maintained in an unevaluated form.

EvenQ (Built-in Mathematica Symbol)

EvenQ[expr] gives True if expr is an even integer, and False otherwise.

KroneckerSymbol (Built-in Mathematica Symbol)

KroneckerSymbol[n, m] gives the Kronecker symbol (n/m).

QFactorial (Built-in Mathematica Symbol)

QFactorial[n, q] gives the q-factorial [n] q!.

Divisors (Built-in Mathematica Symbol)

Divisors[n] gives a list of the integers that divide n.

ValueFunction (Experimental Package Symbol)

ValueFunction[symb] represents a function to be applied whenever the symbol symb gets a new value.

Sound and Sonification (Mathematica Guide)

Mathematica supports state-of-the-art sound generation, providing both arbitrary waveform synthesis from functions and data, and symbolic note-based MIDI-style sound ...

OneIdentity (Built-in Mathematica Symbol)

OneIdentity is an attribute that can be assigned to a symbol f to indicate that f[x], f[f[x]], etc. are all equivalent to x for the purpose of pattern matching.

DistributionParameterAssumptions (Built-in Mathematica Symbol)

DistributionParameterAssumptions[dist] gives a logical expression for assumptions on parameters in the symbolic distribution dist.