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From: Christopher Dimech <dimech@gmx.com>
To: ccberry@health.ucsd.edu
Cc: Help Emacs Orgmode <emacs-orgmode@gnu.org>
Subject: Re: displaying equations with ob-latex
Date: Thu, 6 May 2021 23:54:17 +0200	[thread overview]
Message-ID: <trinity-1ee69338-e521-4e7c-842c-dbbdaa1fd46f-1620338057043@3c-app-mailcom-bs12> (raw)
In-Reply-To: <8E0D781F-7947-4616-BA73-1B6F7C45442A@health.ucsd.edu>

It would please many users if ob-latex was made to behave like other code blocks.
One can parse and show equations in emacs using mathjax as has been recently
implemented in texinfo using @display.

Regards
Christopher



> Sent: Friday, May 07, 2021 at 6:14 AM
> From: "Berry, Charles via General discussions about Org-mode." <emacs-orgmode@gnu.org>
> To: "michael-franzese@gmx.com" <michael-franzese@gmx.com>
> Cc: "Help Emacs Orgmode" <emacs-orgmode@gnu.org>
> Subject: Re: displaying equations with ob-latex
>
>
>
> > On May 6, 2021, at 12:50 AM, michael-franzese@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
>
>
>
>
>

---------------------
Christopher Dimech
General Administrator - Naiad Informatics - GNU Project (Geocomputation)
- Geophysical Simulation
- Geological Subsurface Mapping
- Disaster Preparedness and Mitigation
- Natural Resource Exploration and Production
- Free Software Advocacy


  reply	other threads:[~2021-05-06 21:55 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-06  7:50 michael-franzese
2021-05-06 18:14 ` Berry, Charles via General discussions about Org-mode.
2021-05-06 21:54   ` Christopher Dimech [this message]
2021-05-06 22:08   ` michael-franzese
2021-05-06 22:52     ` Berry, Charles via General discussions about Org-mode.
2021-05-06 23:20       ` michael-franzese
2021-05-07  1:36         ` Berry, Charles via General discussions about Org-mode.
2021-05-07  2:33           ` michael-franzese
2021-05-07  2:39           ` michael-franzese
2021-05-07  3:14             ` Ihor Radchenko
2021-05-07  3:20               ` michael-franzese
2021-05-07  3:36               ` michael-franzese
2021-05-07  4:40                 ` Displaying " Christopher Dimech
2021-05-07  3:18             ` displaying " Berry, Charles via General discussions about Org-mode.
2021-05-07  3:22               ` michael-franzese
2021-05-06 23:31       ` michael-franzese
2021-05-06  9:54 michael-franzese
2021-05-06 12:37 ` Christopher Dimech
2021-05-06 12:44 ` pietru

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