PermutationSupport[perm] returns the support of the permutation perm.
PiecewiseExpand[expr] expands nested piecewise functions in expr to give a single piecewise function. PiecewiseExpand[expr, assum] expands piecewise functions using ...
PolynomialQuotientRemainder[p, q, x] gives a list of the quotient and remainder of p and q, treated as polynomials in x.
PopupWindow[expr, contents] displays as expr, but pops up a window containing contents when clicked.
Power
(Built-in Mathematica Symbol) x^y gives x to the power y.
PreserveImageOptions is an option to graphics and related functions that specifies whether image size and certain other options should be preserved from the previous version ...
PrincipalComponents[matrix] transforms elements of matrix into unscaled principal components.
Print
(Built-in Mathematica Symbol) Print[expr] prints expr as output.
ProgressIndicator[x] represents a progress indicator with setting x in the range 0 to 1. ProgressIndicator[Dynamic[x]] takes the setting to be the dynamically updated current ...
QHypergeometricPFQ[{a_1, ..., a_r}, {b_1, ..., b_s}, q, z] gives the basic hypergeometric series \[Null]_r \[Phi]_s (a; b; q; z).