BoundaryStyle is an option for plotting functions that specifies the style in which boundaries of regions should be drawn.
ButtonSource is an option for the low-level function ButtonBox that specifies the first argument to give to the ButtonFunction for the button when the button is active and is ...
CancelButton[] represents a Cancel button in a dialog that closes the dialog window when clicked.CancelButton[action] represents a button labeled Cancel that evaluates action ...
ChampernowneNumber[b] gives the base-b Champernowne number C_b.ChampernowneNumber[] gives the base-10 Champernowne number.
DatePattern[{"e_1", "e_2", ...}] represents the characters of a date with elements of type "e_i" in StringExpression.DatePattern[{"e_1", "e_2 ", ...}, sep] allows separators ...
DefaultButton[] represents an OK button that closes a dialog, and is the default when DynamicBox[ToBoxes[If[$OperatingSystem === "MacOSX", "Return", "Enter"], StandardForm], ...
DeleteCases[expr, pattern] removes all elements of expr that match pattern. DeleteCases[expr, pattern, levelspec] removes all parts of expr on levels specified by levelspec ...
DialogInput[expr] interactively puts up expr as a dialog notebook, waits until a DialogReturn[e] is evaluated from within it, and then returns the result e. DialogInput[{x = ...
DisplayForm[expr] prints with low-level boxes inside expr shown in explicit two-dimensional or other form.
DistanceFunction is an option for functions such as Nearest that specifies the distance value to assume between any two specified points.