[tex4ht] Black stripe on formula rendering

[Michal Hoftich]

Hi Giuseppe,

could you please post minimal working example which produces the
error? When I tried

-----
\documentclass{article}
\begin{document}
\[
k_v=\min\begin{cases}
 1  \\
\frac{k_{n}(1+\frac{1,1i^{1,5}}{\sqrt{h}})}{\sqrt{h}(\sqrt{\alpha(1-\alpha)}+0,8\frac{x}{h}\sqrt{\frac{1}{\alpha}-\alpha^{2}})}
\\
\end{cases}
\]
\end{document}

the output was correct. So maybe the problem is with some package you use.

Regards,
Michal

2015-02-10 12:39 GMT+01:00 Giuseppe Pica <jospic at gmail.com>:
> Hi,
> the following latex code produces a black stripe as shown in figure.
>
> \[
> k_v=\min\begin{cases}
>  1  \\
> \frac{k_{n}(1+\frac{1,1i^{1,5}}{\sqrt{h}})}{\sqrt{h}(\sqrt{\alpha(1-\alpha)}+0,8\frac{x}{h}\sqrt{\frac{1}{\alpha}-\alpha^{2}})}
> \\
> \end{cases}
> \]
>
> http://www.iperspace.it/main121x.png
>
> How can I fix this?
> Thanks in advance.
> Regards
> -j