Yes, this works, indeed.

If I could just figure why

... and how to use it with captions, labels and cross-references.

But I still don't "get" drawers, I thonk.

Thanks a lot ! You gave me somethong to think about.


Le dimanche 04 juillet 2021 à 15:04 -0400, John Kitchin a écrit :
> This incantation worked for me:
> #+name: foo
> #+begin_src emacs-lisp :exports both :results drawer
>   "Pseudo-function returning a LaTeX pseudo-result."
>   "\\[\\displaystyle{\\sin\\left(\\frac{a}{b}\\right)}\\]"
> #+end_src
> 
> #+RESULTS: foo
> :results:
> \[\displaystyle{\sin\left(\frac{a}{b}\right)}\]
> :end:
> 
> the key is the drawer I think.
> John
> 
> -----------------------------------
> Professor John Kitchin (he/him/his)
> Doherty Hall A207F
> Department of Chemical Engineering
> Carnegie Mellon University
> Pittsburgh, PA 15213
> 412-268-7803
> @johnkitchin
> http://kitchingroup.cheme.cmu.edu
> 
> 
> 
> On Sun, Jul 4, 2021 at 2:51 PM Emmanuel Charpentier
> <emm.charpentier@free.fr> wrote:
> > I tried this :
> > 
> > #+property: header-args:sage :session
> > #+options: tex:t toc:nil author:nil
> > #+begin_src emacs-lisp :exports none
> > ;; (customize-set-variable
> > ;; 'org-latex-to-mathml-convert-command
> > ;; "latexmlmath \"%i\" --presentationmathml=%o")
> > (custom-set-variables
> > '(org-latex-to-mathml-convert-command
> > "java -jar %j -unicode -force -df %o %I")
> > '(org-latex-to-mathml-jar-file
> > "/usr/local/bin/mathtoweb.jar"))
> > #+end_src
> > 
> > A "normal" function call with org result...
> > 
> > #+name: foo
> > #+begin_src emacs-lisp :exports both :results org
> > "Pseudo-function returning a LaTeX pseudo-result."
> > "\\[\\displaystyle{\\sin\\left(\\frac{a}{b}\\right)}\\]"
> > #+end_src
> > 
> > #+RESULTS: foo
> > #+begin_src org
> > \[\displaystyle{\sin\left(\frac{a}{b}\right)}\]
> > #+end_src
> > 
> > Which exports the LaTeX *source* (uncompiled) in PDF, HTML and ODT.
> > 
> > I'm currently lookin into a =:post= workaround. But an option to
> > export =latex= blocks to selected exporters (ODT, HTML, possibly
> > Morkdown via pandoc).
> > 
> > I'll keep you posted.
> > 
> > Le dimanche 04 juillet 2021 à 14:10 -0400, John Kitchin a écrit :
> > Can you declare the output as org so they will just be latex
> > snippets?
> > 
> > On Sun, Jul 4, 2021 at 3:46 AM Emmanuel Charpentier
> > <emm.charpentier@free.fr> wrote:
> > > Dear list,
> > > 
> > > Org-mode offers the ability to create functions returning LaTeX
> > > results : such occurrences are frequent with Sagemath, Maxima,
> > > Mathematica, R, and even emacs's Calc...
> > > 
> > > Such functions can be declared has having LaTeX output, and the
> > > resulting  =#+begin_export latex ...  #+end_export latex= block
> > > is exported as LaTeX and end up in the PDF versin.
> > > 
> > > But such blocks seem to export *only* to LaTeX/PDF ; more
> > > specically, they do not export to HTML nor ODT. In order to
> > > insert those results at export, one *has* to print them *raw*.
> > > See the attached examples, and compare PDF, HTML and ODT outputs
> > > of the enclosed zip archive (necessary to avoid the wrath of the
> > > spam filter of my provider ;-)...)..
> > > 
> > > Unless I am mistaken, this is the *only* way to export LaTeX
> > > exports to HTML/ODT ; I am not aware of any option allowing to
> > > force such exports. So a couple questions :
> > > * Am I mistaken ?
> > > * Are there more steamlined ways to get LaTeX in
> > > HTML/ODF/whatever-
> > > but-not-LaTeX ?
> > > * Wouldn't an option to allow these exports be a welcome addition
> > > to
> > > the export structure (or possibly to the various exporters) ?
> > > 
> > > Thanks in advance,
> >