Directly integrated into the
Mathematica language is a convenient symbolic options mechanism that allows arbitrary sequences of named parameters to be given to both built-in and user-defined functions.
opt->val — an option whose value is evaluated immediately
opt:>val — an option whose value is evaluated when it is used
Setting Up Options for Functions
SetOptions — set up default option values for a function
OptionsPattern — a pattern representing an arbitrary sequence of options
OptionValue — retrieve values of options while executing a function
FilterRules — filter particular options from a longer list
Options — get the options for a function or object with options
AbsoluteOptions — get explicit values for options that are given as
Automatic, etc.
Common Generic Option Values