Hi Diego

Thanks for the quick answer
> Hi Uwe,
>     1. Is there any equivalent to org-update-all-dblocks for the source

> I think you want org-babel-execute-buffer:

Right, thanks!!!


> Documentation
> Call org-babel-execute-src-block on every source block in

> the current buffer.

>      2. I want to export the org file to latex, in the current setting

> Normally, =:results output= should be enough, but there might be some
> peculiarities with matlab blocks that change this behavior.


That did not work: I tried
#+begin_src matlab  :results output 

But when I exported the org file to latex, the matlab code was also
exported. Strange 

Anybody has an idea?