Reap
(Built-in Mathematica Symbol) Reap[expr] gives the value of expr together with all expressions to which Sow has been applied during its evaluation. Expressions sown using Sow[e] or Sow[e, tag_i] with ...
RecordLists is an option for ReadList that specifies whether objects from separate records should be returned in separate sublists.
Record
(Built-in Mathematica Symbol) Record represents a record in Read, Find, and related functions.
RecordSeparators is an option for Read, Find, and related functions that specifies the list of strings to be taken as delimiters for records.
RectangleChart[{{x_1, y_1}, {x_2, y_2}, ...}] makes a rectangle chart with bars of width x_i and height y_i. RectangleChart[{..., w_i[{x_i, y_i}, ...], ..., w_j[{x_i, y_j}, ...
Rectangle[{x_min, y_min}, {x_max, y_max}] is a two-dimensional graphics primitive that represents a filled rectangle, oriented parallel to the axes. Rectangle[{x_min, y_min}] ...
RecurrenceTable[eqns, expr, {n, n_max}] generates a list of values of expr for successive n based on solving the recurrence equations eqns.RecurrenceTable[eqns, expr, nspec] ...
Reduce
(Built-in Mathematica Symbol) Reduce[expr, vars] reduces the statement expr by solving equations or inequalities for vars and eliminating quantifiers. Reduce[expr, vars, dom] does the reduction over the ...
ReferenceLineStyle is an option for QuantilePlot and similar functions that specifies the style used for the reference line.
Refine
(Built-in Mathematica Symbol) Refine[expr, assum] gives the form of expr that would be obtained if symbols in it were replaced by explicit numerical expressions satisfying the assumptions assum. ...