PolynomialRemainder[p, q, x] gives the remainder from dividing p by q, treated as polynomials in x.
PopupWindow[expr, contents] displays as expr, but pops up a window containing contents when clicked.
PowerSymmetricPolynomial[r] represents a formal power symmetric polynomial with exponent r.PowerSymmetricPolynomial[{r_1, r_2, ...}] represents a multivariate formal power ...
Prolog
(Built-in Mathematica Symbol) Prolog is an option for graphics functions which gives a list of graphics primitives to be rendered before the main part of the graphics is rendered.
QHypergeometricPFQ[{a_1, ..., a_r}, {b_1, ..., b_s}, q, z] gives the basic hypergeometric series \[Null]_r \[Phi]_s (a; b; q; z).
RefreshRate is an option to Animate and related functions which specifies the refresh rate for frames in animations.
ReturnPacket[expr] is a MathLink packet that contains the expression expr, the result of an EvaluatePacket evaluation.
RussellRaoDissimilarity[u, v] gives the Russell\[Dash]Rao dissimilarity between Boolean vectors u and v.
SelectComponents[m, " prop", crit] computes a property " prop" for all components in a label matrix m and returns a version of m in which components that do not satisfy crit ...
ShowCellTags is an option for Cell that specifies whether to display tags for a cell.