GridDefaultElement is an option for the low-level function GridBox that specifies what to insert when a new element is created interactively in a GridBox.
LibraryFunctionError[name, code] represents an error returned from a LibraryFunction.
PowerModList[a, s/r, m] gives a list of all x modulo m for which x^r \[Congruent] a^s mod m.
ScreenRectangle is a global option that specifies the position of the screen by giving the coordinates of two diagonally opposite corners.
SelectionAnimate[notebook] animates graphics in the current selection in a notebook. SelectionAnimate[notebook, t] animates graphics for t seconds.
StartOfLine represents the start of a line in a string for purposes of matching in StringExpression.
Thumbnail[image] gives a thumbnail version of an image.Thumbnail[image, size] gives a thumbnail with the specified maximum pixel size.
TrigFactorList[expr] factors trigonometric functions in expr, yielding a list of lists containing trigonometric monomials and exponents.
WindowToolbars is a notebook option that specifies the toolbars to include at the top of the window used to display the notebook on the screen.
$Inspector is a global variable which gives a function to apply when the inspector is invoked from an interrupt menu.