Asynchronous is an option for WolframAlpha that determines whether to use the asynchronous features of the Wolfram|Alpha API.

AtomQ[expr] yields True if expr is an expression which cannot be divided into subexpressions, and yields False otherwise.

Attributes[symbol] gives the list of attributes for a symbol.

AugmentedSymmetricPolynomial[{r_1, r_2, ...}] represents a formal augmented symmetric polynomial with exponents r_1, r_2, ....AugmentedSymmetricPolynomial[{{r_11, ..., r 1 ...

AutoAction is an option for objects such as Slider, Locator, and Button that specifies whether they should automatically take action whenever the mouse pointer is over them, ...

AutoDelete is an option for boxes that specifies whether a box is automatically deleted when its contents are edited.

AutoGeneratedPackage is an option for notebooks that specifies whether a package is automatically created when a notebook that contains initialization cells or groups is ...

AutoIndent is an option for Style and Cell that specifies what automatic indentation should be done at the beginning of a new line after an explicit return character has been ...

AutoItalicWords is an option for Cell that gives a list of words that should automatically be put in italics when they are entered.

AutoloadPath is a global option that specifies from which directories packages are automatically loaded when Mathematica is started.