Delimiter (Built-in Mathematica Symbol)

Delimiter represents a delimiter to be displayed in objects such as PopupMenu and Manipulate.

Deployed (Built-in Mathematica Symbol)

Deployed is an option for displayed objects, cells, and notebooks that specifies whether their contents should be considered deployed, so that elements such as Slider, ...

DiacriticalPositioning (Built-in Mathematica Symbol)

DiacriticalPositioning is an option for UnderscriptBox and related boxes that specifies how close diacritical characters are drawn to the base character.

DigitCharacter (Built-in Mathematica Symbol)

DigitCharacter represents a digit character 0\[Dash]9 in StringExpression.

DiracComb (Built-in Mathematica Symbol)

DiracComb[x] represents the Dirac comb function giving a delta function at every integer point. DiracComb[x_1, x_2, ...] represents the multidimensional Dirac comb function.

Direction (Built-in Mathematica Symbol)

Direction is an option for Limit that specifies the direction in which the limit is taken.

DirectoryQ (Built-in Mathematica Symbol)

DirectoryQ["name"] gives True if the directory with the specified name exists, and gives False otherwise.

DirectoryStack (Built-in Mathematica Symbol)

DirectoryStack[] gives the directory stack that represents the sequence of current directories used.

DivideBy (Built-in Mathematica Symbol)

x /= c divides x by c and returns the new value of x.

DockedCells (Built-in Mathematica Symbol)

DockedCells is an option for notebooks that gives a list of cells that are to be displayed "docked" at the top of the notebook.