Xy-pic User's Guide

## 3.5 Naming for later use as targets

If you build an entry with a long and complicated excursion then you might wish to be able to refer to it later. Xy-pic provides a mechanism for this: there is a special target form which we haven't discussed yet:

t `=``"`name`"`

This will introduce the new target `"`name`"` which will refer to the target just before the `=`. This is particularly useful inside excursions, of course, and can also be used after labels.

#### Exercise 18.

Typeset .

Answer.

Xy-pic User's Guide