When Mathematica transforms an expression such as x+x into 2x, it is treating the variable x in a purely symbolic or formal fashion. In such cases, x is a symbol which can ...

This dialog displays information regarding the editing times of the input notebook. This is a "live" dialog that dynamically updates as changes are made to the notebook. It ...

 

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

MaxExtraBandwidths is an option to SmoothKernelDistribution that controls the behavior outside that data range.

Opener[x] represents an opener with setting x, displayed as OpenerBox[True] when x is True and OpenerBox[False] when x is False. Opener[Dynamic[x]] takes the setting to be ...

As the world's most extensive programmatic mathematical typesetting system, Mathematica provides a range of controls over the details of layout and rendering.

ScrollingOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option for notebooks that specifies settings for scrolling.

Overlay[{expr_1, expr_2, ...}] displays as an overlay of all the expr_i.Overlay[{expr_1, expr_2, ...}, {i, j, ...}] displays as an overlay of expr_i, expr_j, ...

Arrow has been added to the built-in Mathematica kernel. New directive Arrowheads has been added to the built-in Mathematica kernel.