OperatingSystem (Built-in Mathematica Symbol)

OperatingSystem is an option for file and related operations that specifies the type of operating system to use to determine file name and other conventions.

OverBar (Built-in Mathematica Symbol)

OverBar[expr] displays with a bar over expr.

PowerModList (Built-in Mathematica Symbol)

PowerModList[a, s/r, m] gives a list of all x modulo m for which x^r \[Congruent] a^s mod m.

RandomReal (Built-in Mathematica Symbol)

RandomReal[] gives a pseudorandom real number in the range 0 to 1. RandomReal[{x_min, x_max}] gives a pseudorandom real number in the range x_min to x_max. RandomReal[x_max] ...

ReleaseHold (Built-in Mathematica Symbol)

ReleaseHold[expr] removes Hold, HoldForm, HoldPattern, and HoldComplete in expr.

ReturnExpressionPacket (Built-in Mathematica Symbol)

ReturnExpressionPacket[expr] is a MathLink packet that contains the expression expr, the result of an EnterExpressionPacket evaluation.

RunThrough (Built-in Mathematica Symbol)

RunThrough["command", expr] executes an external command, giving the printed form of expr as input and taking the output, reading it as Mathematica input, and returning the ...

ShowClosedCellArea (Built-in Mathematica Symbol)

ShowClosedCellArea is an option for cells that specifies whether a rectangular bar is displayed next to a closed cell group to indicate the number of cells in the group.

SingleLetterItalics (Built-in Mathematica Symbol)

SingleLetterItalics is an option for Cell that specifies whether single-letter names should be displayed in italics.

StringCount (Built-in Mathematica Symbol)

StringCount["string", " sub"] gives a count of the number of times " sub" appears as a substring of " string". StringCount["string", patt] gives the number of substrings in " ...