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## 2.4 Sliding arrows sideways

It is often desirable to have several parallel arrows between two objects. This can be done by sliding either or both arrows sideways by giving the distance as an optional TeX dimension enclosed in `@<>`s: it specifies how far `sideways' the arrow should be moved, e.g.,

>     \xymatrix{
>      A \ar@<1ex>[dr]^a_{.} \\
>        & B \ar@<1ex>[ul]^b \ar@<1ex>[r]^c
>          & C \ar@<1ex>[l]^d_{.} }

will typeset

A positive distance will slide the arrow in the ``^`-direction', e.g., the two arrows above are slid in the direction of the labels a, b, c, and d, respectively; a negative distance in the ``_`-direction'. The distance `<@1ex>` is often appropriate since it corresponds roughly to the height of letters like `x', in the type size being used.

#### Exercise 10.

Typeset

Answer.

Xy-pic User's Guide: Next: 2.5 More targets. Up: 2 More Arrows and . Previous: 2.3 More arrow styles.