NameQ (Built-in Mathematica Symbol)

NameQ["string"] yields True if there are any symbols whose names match the string pattern given, and yields False otherwise.

NumberString (Built-in Mathematica Symbol)

NumberString represents the characters of a number in StringExpression.

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 ...

Setting (Built-in Mathematica Symbol)

Setting[expr] replaces control objects such as sliders or popup menus in expr by their settings.

ShowSpecialCharacters (Built-in Mathematica Symbol)

ShowSpecialCharacters is an option for Style and Cell that specifies whether to replace \[Name], \:nnnn, etc. by explicit special characters.

WhitespaceCharacter (Built-in Mathematica Symbol)

WhitespaceCharacter represents a single whitespace character in StringExpression.

WindowFloating (Built-in Mathematica Symbol)

WindowFloating is a notebook option that specifies whether the window for the notebook should float on top of other windows when it is displayed on the screen.

WriteString (Built-in Mathematica Symbol)

WriteString[channel, expr_1, expr_2, ...] converts the expr_i to strings, and then writes them in sequence to the specified output channel.

$Context (Built-in Mathematica Symbol)

$Context is a global variable that gives the current context.

$InitialDirectory (Built-in Mathematica Symbol)

$InitialDirectory gives the initial directory when the current Mathematica session was started.