Piecewise (Built-in Mathematica Symbol)

Piecewise[{{val_1, cond_1}, {val_2, cond_2}, ...}] represents a piecewise function with values val_i in the regions defined by the conditions cond_i. Piecewise[{{val_1, ...

Cell > Show Expression (Mathematica Menu Item)

Show Expression toggles between the expression and display forms of a cell.

Mathematica (Mathematica System Program)

Mathematica options starts the full Mathematica system including notebook interface on Windows and Mac.

Evaluator (Built-in Mathematica Symbol)

Evaluator is an option for objects such as Button, Dynamic, and Cell that gives the name of the kernel to use to evaluate their contents.

Language (Built-in Mathematica Symbol)

Language is a global option that specifies the language in which menus, dialog boxes, error messages, and help files are displayed.

$BatchOutput (Built-in Mathematica Symbol)

$BatchOutput is True if output in the current session is being sent in batch mode, suitable for reading by other programs.

$DateStringFormat (Built-in Mathematica Symbol)

$DateStringFormat gives the default format to use for date strings generated by DateString.

$FrontEnd (Built-in Mathematica Symbol)

$FrontEnd is a global variable that specifies to what front end object, if any, the kernel is currently connected.

$HistoryLength (Built-in Mathematica Symbol)

$HistoryLength specifies the number of previous lines of input and output to keep in a Mathematica session.

$Language (Built-in Mathematica Symbol)

$Language is a list of strings which give the names of languages to use for messages.