Options

Options[symbol]
gives the list of default options assigned to a symbol.

Options[expr]
gives the options explicitly specified in a particular expression such as a graphics object.

Options[stream] or Options["sname"]
gives options associated with a particular stream.

Options[object]
gives options associated with an external object such as a NotebookObject.

Options[obj,name]
gives the setting for the option name.

Options[obj,{name1,name2,}]
gives a list of the settings for the options .

DetailsDetails

  • Many builtin functions allow you to give additional arguments that specify options with rules of the form .
  • Options[f] gives the list of rules to be used for the options associated with a function f if no explicit rules are given when the function is called.
  • Options always returns a list of transformation rules for option names.
  • You can assign a value to Options[symbol] to redefine all the default option settings for a function.
  • SetOptions[symbol,name->value] can be used to specify individual default options.
  • You can use Options on InputStream and OutputStream objects. If there is only one stream with a particular name, you can give the name as a string as the argument of Options.
  • If obj is a front end object such as $FrontEnd, NotebookObject, or CellObject, the kernel will send a request to the front end to find the result.
  • Explicit values are found for options associated with cells, even if these options are only set at the style, notebook or global level.

ExamplesExamplesopen allclose all

Basic Examples  (2)Basic Examples  (2)

Get the list of options for the LinearSolve function:

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Define the default options of :

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Define to use the options:

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Introduced in 1988
(1.0)
| Updated in 2012
(9.0)