> On May 6, 2021, at 12:50 AM, michael-franz...@gmx.com wrote:
>
>
> I am trying to use ob-latex but equations are not being displayed in emacs
> when I try to execute with "C-c C-c".
Right. This is because `:results latex replace' is the default for latex src
blocks and the leads to wrapping everything in a latex export block.
The context inside that block is `export-block' - i.e. it is not a
`greater-element' and cannot contain other elements. AFAIK, there is not
previewer for export blocks - latex or otherwise.
The context for an equation inside a greater-element is latex-fragment. And
those can be rendered via `org-latex-preview'.
If you want to render equations for previewing, you could put them into a
drawer that is not repeated in the export.
To make this work, you probably want something like this
#+begin_src org
,#+name: eqn1
,#+begin_src latex :exports none :results drawer
\(y = x\beta + \epsilon\)
,#+end_src
Here is the equation for export:
,#+call: eqn1() :results latex
#+end_src
Evaluating the latex src block (C-c C-c) will create a `results' drawer line
this:
#+RESULTS: eqn1
:results:
\(y = x\beta + \epsilon\)
:end:
but the `:exports none' will strip that out on export. The call line will
create this on export:
#+RESULTS:
#+begin_export latex
\(y = x\beta + \epsilon\)
#+end_export
HTH,
Chuck
