# Options and Auxiliary Functions

Notation ,

Symbolize and

InfixNotation have several options that modify their behavior. These notation functions all take the options

WorkingForm and

Action. In addition the

*Notation* package has a local option

AutoLoadNotationPalette which affects the loading of the palette. Finally, the

*Notation* package has a function which clears all notations, symbolizations, and infix notations defined so far.

## The Option Action

The Action option and its possible values.

The

Notation,

Symbolize and

InfixNotation option

Action determines what a notation statement does with the rules it generates. The default value of the

Action option is

CreateNotationRules, which causes the generated notation rules to be entered into the system.

This creates a notation for pure functions more in keeping with that of traditional mathematics.

Pure functions now use this new notation.

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If the

Action option is set to

RemoveNotationRules, then the notation rules are removed from the system. Using the option value

RemoveNotationRules in a notation statement is equivalent to using the appropriate

RemoveNotation,

RemoveSymbolize or

RemoveInfixNotation statement.

This removes the above notation from the system.

Now the special notation for functions is no longer defined.

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By setting the option

Action to

PrintNotationRules, you can view the rules generated by a notation statement. Examining the

MakeExpression and

MakeBoxes rules is often useful to give you an idea of the underlying box structures that are used in your notation statement.

## The Option WorkingForm

The WorkingForm option and some of its possible values.

The option

WorkingForm specifies the

*form* or

*environment* the

Notation,

Symbolize or

InfixNotation statement is generated in. The typical values of

WorkingForm are

StandardForm or

TraditionalForm; any notations created would only apply in

StandardForm or

TraditionalForm (respectively). However,

WorkingForm can be set to any form you define, for instance

,

, etc.

When the option

WorkingForm is set to

Automatic, the

Notation,

Symbolize or

InfixNotation statement will be created in the ambient default input and output forms. These default forms can be set through the option inspector and they govern what the default input form and the default output form will be. You can see the current settings of these options in your notebook by evaluating

Options[InputNotebook[], CommonDefaultFormatTypes].

These notations behave as expected.

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Out[52]//FullForm= |

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## The Option AutoLoadNotationPalette

| | |

AutoLoadNotationPalette | True, *undefined* | the notation palette will be loaded when the *Notation* package loads |

| False | the notation palette will not be loaded when the *Notation* package loads |

The option AutoLoadNotationPalette and its behavior.

If you are designing a package, you may want to hide the

notation palette when the user loads the

*Notation* package so as not to confuse them. You can set the Boolean variable

AutoLoadNotationPalette inside your package to achieve this. If

AutoLoadNotationPalette has been set to

False then the notation palette will not be loaded when the

*Notation* package is loaded. If the value is undefined or

True, the notation palette will be loaded when the

*Notation* package loads. In input form the statement would look like the following.

Statement forcing the notation palette not to load when the

*Notation* package loads.

## The Function ClearNotations

ClearNotations[] | clears all notations, symbolizations and infix notations |

Syntax of ClearNotations.

If you would like to reenter a set of notations or would like to make a "clean start", you can use the

ClearNotations command to erase all notations, symbolizations and infix notations present in the system. Using

ClearNotations should not affect other packages or definitions you have made to

MakeExpression or

MakeBoxes.

Wipe all notations, symbolizations and infix notations.