On 8/15/25 6:30 PM, Enrico Forestieri wrote:
On Fri, Aug 15, 2025 at 12:44:30PM -0400, Richard Kimberly Heck wrote:
The attached file, which was posted at lyx-users, does not compile.
The problem is the blank line between the two displayed formulas.
This causes LyX to output
\textcolor{red}{
\[
I=\int^{\infty}_{-\infty}\frac{1}{1+x^{2}}dx
\]
\[
I=\pi
\]
}
which LaTeX does not like. The workaround is to put a protected space
on the blank line, in which case you get:
\textcolor{red}{
\[
I=\int^{\infty}_{-\infty}\frac{1}{1+x^{2}}dx
\]
\
\[
I=\pi
\]
}
Even putting a comment on that line works.
I guess maybe that is a LaTeX bug then?
No, it isn't. \textcolor typesets single paragraphs and LyX knows
that. Indeed, you can see that the whole LaTeX source is as follows:
\textcolor{red}{Colored formulas.}
\textcolor{red}{
\[
I=\int^{\infty}_{-\infty}\frac{1}{1+x^{2}}dx
\]
\[
I=\pi
\]
}
So, this is a LyX bug not accounting for the fact that the two
formulas are on two different paragraphs.
Right. Should I file a bug?
Riki
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