[tex4ht] another mathml/mathjax issue, \operatorname{} problem with mathjax

Thu Aug 7 13:33:06 CEST 2014

Hi Nasser,

I don't think this is related to mathjax, your code generates mathml
which is invalid according to w3c html validator. What about this?:

\[
       \operatorname{I}_{\frac{4}{3}}
\]

output from pdflatex is same as in your version, but mathml produced
by tex4ht is valid and looks same as pdf version.

Regards,
Michal

2014-08-06 21:51 GMT+02:00 Nasser M. Abbasi <nma at 12000.org>:
> fyi,
>
> This might be known issue. This MWE generate mathml that mathjax does not
> like.
>
> --------------------------------
>     \documentclass[12pt]{article}
>     \usepackage{amsmath}
>     \begin{document}
>     \[
>        \operatorname{I_{\frac{4}{3}}}
>     \]
>     \end{document}
> -----------------------
>
> compile with:
>
> htlatex foo.tex "nma,htm,pic-align,charset=utf-8,notoc*" " -cunihtf -utf8"
>
> The foo.htm file, on firefox shows an error
>
>          Unexpected text node: 'I'
>
> the file nma.cfg just loads the mathjax. Here it is in case someone
> wants to reproduce the above:
>
> -------------------------------
>>
>> cat  nma.cfg
>
>
> \Preamble{xhtml,mathml,ext=htm,charset="utf-8",p-width,pic-align}  %does
> mathml, not png !
> \Configure{VERSION}{}
>   \Configure{DOCTYPE}{\HCode{<!DOCTYPE html>\Hnewline}}
>   \Configure{HTML}{\HCode{<html>\Hnewline}}{\HCode{\Hnewline</html>}}
>   \Configure{@HEAD}{}
>   \Configure{@HEAD}{\HCode{<meta charset="UTF-8" />\Hnewline}}
>   \Configure{@HEAD}{\HCode{<link
>            rel="stylesheet" type="text/css"
>            href="\expandafter\csname aa:CssFile\endcsname" />\Hnewline}}
>              \Configure{@HEAD}{\HCode{%
>      <script type="text/x-mathjax-config">\Hnewline
>        MathJax.Hub.Config({\Hnewline
>          extensions: ["tex2jax.js"],
>          jax: ["input/TeX", "output/HTML-CSS"],
>          tex2jax: {
>            \unexpanded{inlineMath: [ ['$','$'], ["\\(","\\)"] ],}\Hnewline
>            \unexpanded{displayMath: [ ['$$','$$'], ["\\[","\\]"]
> ],}\Hnewline
>            ignoreClass: "fancyvrb|verbatim",\Hnewline
>            processEscapes: true
>          },
>          "HTML-CSS": { availableFonts: ["TeX"] }
>        });\Hnewline
>      </script>
>   }}
>              \Configure{@HEAD}{\HCode{<script
> type="text/javascript"\Hnewline
>
> src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"\Hnewline
>   ></script>\Hnewline}}
>   \Configure{@HEAD}{\HCode{<style type="text/css">\Hnewline
>     .MathJax_MathML {text-indent: 0;}\Hnewline
>   </style>\Hnewline}}
>
> \begin{document}
>
> \EndPreamble
> ------------------------------------------------
>
> Here is the HTML source for the above:
>
> ---------------------------------------------
> <div class="par-math-display"><!--l. 8--><math
>  xmlns="http://www.w3.org/1998/Math/MathML"
> display="block" ><mrow
>>
>>
>      <mo class="qopname"><msub><mrow
>>
>> I</mrow><mrow
>> <mfrac><mrow
>> 4</mrow>
>
> <mrow
>>
>> 3</mrow></mfrac> </mrow></msub
>> </mo><!--nolimits-->
>
> </mrow></math></div>
> <!--l. 10--><p class="nopar" >
> </p>
> ---------------------------------
>
> texlive 2014 on Linux
>
> thank you,
> --Nasser
>