From: Federico Beffa <beffa@ieee.org>
To: emacs-orgmode@gnu.org
Subject: Re: latex equations and $ sign
Date: Wed, 9 Jul 2014 15:31:18 +0200 [thread overview]
Message-ID: <CAKrPhPP6aOXWVZtybzgFhBQJM_oTj4OFP+OZULQ_3FebwR65oA@mail.gmail.com> (raw)
In-Reply-To: <8738fixevg.fsf@gmx.us>
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Hi Ramus,
yes, the reason is that, differently from $...$ and \(...\), an equation
environment produces a *numbered* equation to which you can add a label and
reference the equation by (label) name in other parts of the text. This is
not possibly with unnumbered math environments ($$, ...).
Regards,
Fede
On Fri, Jun 6, 2014 at 5:00 PM, Rasmus <rasmus@gmx.us> wrote:
> Federico Beffa <beffa@ieee.org> writes:
>
> > Hi,
> >
> > I would like to have a mathematical equation typeset in latex and
> > automatically generated by sympy, embedded in an equation environment:
> >
> > #+NAME: mass-energy
> > #+BEGIN_SRC python :results raw :exports results :wrap EQUATION
> > import sympy as sp
> > E, m, c = sp.symbols('E, m, c', real=True, positive=True)
> > E = m*c**2
> > return sp.latex(E)
> > #+END_SRC
> >
> >
> > #+NAME: eq:1
> > #+RESULTS: mass-energy
> > #+BEGIN_EQUATION
> > c^{2} m
> > #+END_EQUATION
> >
> > The problem I'm facing is that despite the fact that the equation is
> > already in a mathematical mode latex environment, it still gets sub- and
> > superscripts surrounded by a $ sign. Here is the generated latex snippet:
> >
> > \begin{equation}
> > \label{eq:1}
> > c$^{\text{2}}$ m
> > \end{equation}
> >
> > Is there a way to teach org-mode not to insert $ signs in equation
> > environments?
>
> Is there a reason you are not using a mode argument like this:
>
> #+NAME: mass-energy
> #+BEGIN_SRC python :results raw :exports results :post
> import sympy as sp
> E, m, c = sp.symbols('E, m, c', real=True, positive=True)
> E = m*c**2
> return sp.latex(E, mode="inline")
> #+END_SRC
>
> #+RESULTS: mass-energy
> $c^{2} m$
>
>
> Alternatively, if you need to combine stuff you could use the post
> argument
>
> #+name: wrapper
> #+BEGIN_SRC emacs-lisp :var x=""
> (format "\\(%s\\)" x)
> #+END_SRC
>
> #+NAME: mass-energy
> #+BEGIN_SRC python :results raw :exports results :post
> wrapper(x=*this*)
> import sympy as sp
> E, m, c = sp.symbols('E, m, c', real=True, positive=True)
> E = m*c**2
> return sp.latex(E)
> #+END_SRC
>
> #+RESULTS: mass-energy
> \(c^{2} m\)
>
> —Rasmus
>
> --
> El Rey ha muerto. ¡Larga vida al Rey!
>
>
>
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prev parent reply other threads:[~2014-07-09 13:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-06 10:47 latex equations and $ sign Federico Beffa
2014-06-06 14:10 ` Jorge A. Alfaro-Murillo
2014-07-09 13:32 ` Federico Beffa
2014-06-06 15:00 ` Rasmus
2014-07-09 13:31 ` Federico Beffa [this message]
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