[Xy-pic] \int and \CompileMatrices

[Richard Lewis]

Samuel Mimram <samuel.mimram at ens-lyon.org> writes:

> The attached file compiles cleanly without \CompileMatrices, but when
> \CompileMatrices is added, it fails on:
>
> ! Undefined control sequence.
> <argument> ...matrixCOORD@ \DOTSI \intop \ilimits
>                                                   @ _0^1a\ar [r]
> l.19 \xy@{\save }{\save@ }
>                           %
>
> Is there anything I should do to make it work?

use braces around entries that start with expandable tokens (here \int):
\xymatrix{
  {\int_0^1a}\ar[r]&b
}

this is mentioned in the documentation