Equation references for HTML: suggested approaches?

Equation references for HTML: suggested approaches?

[Ahmed Fasih]

Hi, I've been using org-mode very successfully to output Latex, and
have used successfully Latex math modes like "equation" to number
equations and reference them:

\begin{equation}
\label{eq-myeq}
a = 1
\end{equation}

We have defined something in (\ref{eq-myeq}).

In HTML output, however, the equation isn't numbered and this
reference is rendered as anchored links that don't exist in the file.

I realize that there's some debate in MathJax to add this
functionality, but I write today specifically to ask what workarounds
people use to get equation numbering and referencing in HTML output,
as a stopgap solution?
- The org-mode method of embedding and linking to *images* works great
for Latex output and ok for HTML output (where figures aren't
numbered, and references to them use their caption instead of a
number---which is passable), but I can't find a way to use this with
equations.
- I've also tried to use local search links, e.g., [[-eq-myeq]] but
this doesn't seem to work ("No match - create this as a new
heading?").

So is there a simple workaround to get numbered equations and
references in HTML that people currently use while a robust solution
is being worked on?
Thanks for your help!
Ahmed

Re: Equation references for HTML: suggested approaches?

[Ahmed Fasih]

Apologies, I discovered one stopgap solution already:

# <<eq-myeq>>
\begin{equation}
\label{eq-myeq}
a = 1
\end{equation}

We have defined something in (\ref{eq-myeq}), and this link will look
fine in both Latex and HTML output. This just requires me to ensure
that the anchor and the Latex label are the same. (Also, a secondary
drawback: usually I use \eqref so that the output eventual PDF after
Latex output will link "(1)" and not just the 1 in "(1)".)
Improvements to this method are welcome. Thanks,
Ahmed

On Wed, Aug 10, 2011 at 8:15 AM, Ahmed Fasih <wuzzyview@gmail.com> wrote:
> Hi, I've been using org-mode very successfully to output Latex, and
> have used successfully Latex math modes like "equation" to number
> equations and reference them:
>
> \begin{equation}
> \label{eq-myeq}
> a = 1
> \end{equation}
>
> We have defined something in (\ref{eq-myeq}).
>
> In HTML output, however, the equation isn't numbered and this
> reference is rendered as anchored links that don't exist in the file.
>
> I realize that there's some debate in MathJax to add this
> functionality, but I write today specifically to ask what workarounds
> people use to get equation numbering and referencing in HTML output,
> as a stopgap solution?
> - The org-mode method of embedding and linking to *images* works great
> for Latex output and ok for HTML output (where figures aren't
> numbered, and references to them use their caption instead of a
> number---which is passable), but I can't find a way to use this with
> equations.
> - I've also tried to use local search links, e.g., [[-eq-myeq]] but
> this doesn't seem to work ("No match - create this as a new
> heading?").
>
> So is there a simple workaround to get numbered equations and
> references in HTML that people currently use while a robust solution
> is being worked on?
> Thanks for your help!
> Ahmed
>

Re: Equation references for HTML: suggested approaches?

[Bastien]

Hi Ahmed,

Ahmed Fasih <wuzzyview@gmail.com> writes:

> Apologies, I discovered one stopgap solution already:
>
> # <<eq-myeq>>
> \begin{equation}
> \label{eq-myeq}
> a = 1
> \end{equation}
>
> We have defined something in (\ref{eq-myeq}), and this link will look
> fine in both Latex and HTML output. This just requires me to ensure
> that the anchor and the Latex label are the same. (Also, a secondary
> drawback: usually I use \eqref so that the output eventual PDF after
> Latex output will link "(1)" and not just the 1 in "(1)".)

Thanks for sharing this solution!

-- 
 Bastien