On Wednesday,  9 May 2018 at 16:04, Joseph Vidal-Rosset wrote:

[...]

> and it seems that is the best option for me, but sometimes I meet error
> with the export into the latex file. But the highlightings works.

For snippets etc., not export blocks, you can also have org display
those snippets as processed latex.  Default binding is C-c C-x C-l
(org-toggle-latex-fragment).
-- 
Eric S Fraga via Emacs 27.0.50, Org release_9.1.7-475-g3ffc7d