RealBlockDiagonalForm is an option for SchurDecomposition and related functions which specifies whether 2*2 blocks of real values should be used on matrix diagonals in place ...
RemoveScheduledTask[obj] remove the obj from the list of currently set tasks.
Residue
(Built-in Mathematica Symbol) Residue[expr, {z, z_0}] finds the residue of expr at the point z = z_0.
RevolutionAxis is an option for RevolutionPlot3D which specifies the revolution axis around which the curve should be rotated.
SamplingPeriod is an option that specifies the sampling period of control system models.
SortBy
(Built-in Mathematica Symbol) SortBy[list, f] sorts the elements of list in the order defined by applying f to each of them.
StartScheduledTask[obj] starts the task represented by obj.
StringLength["string"] gives the number of characters in a string.
StringReverse["string"] reverses the order of the characters in " string".
StyleData["style"] is a low-level representation of the contents of a style definition cell.StyleData["style", " environment"] represents the contents of a style definition ...