DelimiterMatching is an option for selections that specifies whether an opening delimiter will match only its respective closing delimiter or any closing delimiter.
DialogSymbols is an option for Dialog which gives a list of symbols whose values should be localized in the dialog.
Element
(Built-in Mathematica Symbol) Element[x, dom] or x \[Element] dom asserts that x is an element of the domain dom. Element[{x_1, x_2, ...}, dom] asserts that all the x_i are elements of dom. Element[patt, ...
EndDialogPacket[integer] is a MathLink packet indicating the end of the Dialog subsession referenced by integer.
ExponentStep is an option for NumberForm and related functions that determines in what steps exponents are taken to increase when scientific notation is used.
FileNameDialogSettings -> {opt -> val} is a global option that specifies settings for the Insert File Path dialog box.
FourierTrigSeries[expr, t, n] gives the n\[Null]^th-order Fourier trigonometric series expansion of expr in t.FourierTrigSeries[expr, {t_1, t_2, ...}, {n_1, n_2, ...}] gives ...
ItemAspectRatio is an option for GraphicsGrid which specifies the ratio of height to width for the regions in which items are placed in the graphics grid.
LocalizeVariables is an option to Manipulate that determines whether the values of variables associated with controls should be localized.
Locked
(Built-in Mathematica Symbol) Locked is an attribute that, once assigned, prevents modification of any attributes of a symbol.