Hi (It seems that I have to resend my message, hope there will be no double posting). I know that #+begin_src #+attr_latex: :mode math :environment matrix | 0 | -5 | | 5 | 0 | #+end_src Results in #+begin_src \[ \begin{matrix} 0 & -5 \\ 5 & 0 \\ \end{matrix} \] #+end_src However I would like #+begin_src #+attr_latex: :mode math :environment matrix D= | 0 | -5 | | 5 | 0 | #+end_src To be exported as #+begin_src \[ D= \begin{matrix} 0 & -5 \\ 5 & 0 \\ \end{matrix} \] #+end_src How can I do that? Thanks and regards Uwe Brauer