PathGraphQ[g] yields True if the graph g is a path and False otherwise.
Positive[x] gives True if x is a positive number.
PriceGraphDistribution[n, k, a] represents a de Solla Price graph distribution for n-vertex graphs where a new vertex with k edges is added at each step using attractiveness ...
PrintingCopies is an option for notebooks that specifies the number of copies of a notebook printed when a print command is given.
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 ...
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).
RadicalBoxOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option for selections that specifies settings for RadicalBox objects.
RawBoxes[boxes] is a low-level construct which is formatted as boxes without further interpretation.
SampleDepth is an option for sound primitives that specifies how many bits should be used to encode sound amplitude levels.