manuel madrigal wrote:
>
> Hi,
>
> I'm using \displaystyle in a fraction by using LyX. I save this file,
> test.lyx, which part of it is like that:
>
> \layout Standard
>
> \begin_inset Formula
> \[
> \frac{\displaystyle \sum _{1}^{2}x}{y}\]
>
> \end_inset
>
> \the_end
>
> I close and load test.lyx, but LyX doesn't recognise the command
> \displaystyle and the solution is to type it again!!. Do you have the
> correct solution?.
this may help:
in latex preamble:
\newcommand\myDstyle[1]{\displaystyle{#1}}
and than
\[
> \frac{\myDstyle{\sum _{1}^{2}x}{y}}\]
Herbert
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