ListPlay[{a_1, a_2, ...}] creates an object that plays as a sound whose amplitude is given by the sequence of levels a_i.
MathieuCharacteristicA[r, q] gives the characteristic value a_r for even Mathieu functions with characteristic exponent r and parameter q.
MathieuCharacteristicB[r, q] gives the characteristic value b_r for odd Mathieu functions with characteristic exponent r and parameter q.
NotebookConvertSettings -> {opt_1 -> val_1, opt_2 -> val_2, ...} is a global option that specifies settings for converting imported legacy notebooks.
NotebookOpen["name"] opens an existing notebook with the specified name, returning the corresponding notebook object. NotebookOpen["name", options] opens a notebook using the ...
PermutationListQ[expr] returns True if expr is a valid permutation list and False otherwise.
PermutationSupport[perm] returns the support of the permutation perm.
RamanujanTauTheta[t] gives the Ramanujan tau theta function \[Theta](t).
RandomImage[max, {w, h}] gives an image of dimensions {w, h} with pseudorandom pixel values generated from a uniform distribution in the range 0 to max.RandomImage[{min, ...
expr /. rules applies a rule or list of rules in an attempt to transform each subpart of an expression expr.