Arash Esbati writes:
> I'm not sure if we have an issue with the manual of preview here, but
> IIRC, one must pass the environments option(s) explicitly to preview.sty
> if loaded in .tex file, `active' alone doesn't suffice. This code
> produces the desired result:
>
> \documentclass{beamer}
>
Ciao Mosè,
thank you for the working solution
> (with-eval-after-load "preview"
> (add-to-list 'preview-default-preamble
>"\\PreviewEnvironment*{frame}" t))
that you have posted. Preview's info manual suggests to customize the
"preview-default-preamble" variable but it's more or
Mosè Giordano writes:
> 2018-02-28 23:53 GMT+01:00 :
>> I have two files, test1.tex
>>
>> \documentclass{beamer}
>> \begin{document}
>> \begin{frame}
>> \[ a = \begin{bmatrix} 2 & 4 \\ 7 & 3 \end{bmatrix} \]
>> \end{frame}
>> \end{document}
>>
>> and test2.tex (* note that here I load preview.
