How to write math equations for LatTeX *and* for HTML output?

How to write math equations for LatTeX *and* for HTML output?

[news-WPTjrydoUPgeaOpM6FAJmQkbCANdLtlA]

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For HTML output I write equations in the markdown source as:

$$
\begin{equation}
s = \sqrt{\frac{\sum(x_i - \bar{x})^2}{n-1}} \quad \text{(variance is 
$s^2$)}
\end{equation}
$$


This renders beautiful.

However when compiling the same source to LaTeX, I get a LaTeX file 
containing:

\[
\begin{equation}
s = \sqrt{\frac{\sum(x_i - \bar{x})^2}{n-1}} \quad \text{(variance is 
$s^2$)}
\end{equation}
\]


which produces in pdflatex the LaTeX Error: *Bad math environment delimiter*

How do I write math equations which compile properly to LatTeX *and* to 
HTML output?

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Re: How to write math equations for LatTeX *and* for HTML output?

[John MacFarlane]

\begin{equation} starts a math environment and shouldn't go
inside $$..$$.

Have you tried without it in HTML?  What HTML math rendering
method are you using, mathjax?

+++ news-WPTjrydoUPgeaOpM6FAJmQkbCANdLtlA@public.gmane.org [Mar 28 16 13:36 ]:
>   For HTML output I write equations in the markdown source as:
>
>   $$
>
>   \begin{equation}
>
>   s = \sqrt{\frac{\sum(x_i - \bar{x})^2}{n-1}} \quad \text{(variance is
>   $s^2$)}
>
>   \end{equation}
>
>   $$
>
>   This renders beautiful.
>   However when compiling the same source to LaTeX, I get a LaTeX file
>   containing:
>
>   \[
>
>   \begin{equation}
>
>   s = \sqrt{\frac{\sum(x_i - \bar{x})^2}{n-1}} \quad \text{(variance is
>   $s^2$)}
>
>   \end{equation}
>
>   \]
>
>   which produces in pdflatex the LaTeX Error: Bad math environment
>   delimiter
>   How do I write math equations which compile properly to LatTeX and to
>   HTML output?
>
>   --
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>   4. https://groups.google.com/d/optout

Re: How to write math equations for LatTeX *and* for HTML output?

[Denis Navas Vega]

El 2016-03-28 a las 14:36, 
news-WPTjrydoUPgeaOpM6FAJmQkbCANdLtlA@public.gmane.org escribió:
> (variance is $s^2$)

This way works:

\begin{equation}

s = \sqrt{\frac{\sum(x_i - \bar{x})^2}{n-1}} \quad \text{(variance is 
$s^2$)}

\end{equation}

Note that this expresion lacks \[ ... \] and that \text{...} requires 
usepackage{amsmath} in the document's preamble.

Stefan Kottwitz in "Beginner's Guide", shows examples with \[ \] but 
without the equation environment and when uses the equation environment, 
does not uses \[ \].





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Re: How to write math equations for LatTeX *and* for HTML output?

[news-WPTjrydoUPgeaOpM6FAJmQkbCANdLtlA]

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Thanks for the hints Just using $$ without the equation env works fine in 
both output cases. :-)

On Tuesday, March 29, 2016 at 7:36:49 AM UTC+11, 
ne...-WPTjrydoUPgeaOpM6FAJmQkbCANdLtlA@public.gmane.org wrote:
>
> For HTML output I write equations in the markdown source as:
>
> $$
> \begin{equation}
> s = \sqrt{\frac{\sum(x_i - \bar{x})^2}{n-1}} \quad \text{(variance is 
> $s^2$)}
> \end{equation}
> $$
>
>
> This renders beautiful.
>
> However when compiling the same source to LaTeX, I get a LaTeX file 
> containing:
>
> \[
> \begin{equation}
> s = \sqrt{\frac{\sum(x_i - \bar{x})^2}{n-1}} \quad \text{(variance is 
> $s^2$)}
> \end{equation}
> \]
>
>
> which produces in pdflatex the LaTeX Error: *Bad math environment 
> delimiter*
>
> How do I write math equations which compile properly to LatTeX *and* to 
> HTML output?
>

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