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

Thu Aug 7 19:57:13 CEST 2014

Yes, I meant that generated LaTeX is wrong and this result in invalid
mathml. Correct code is

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

which produces valid mathml and the same visual output in both html and pdf.

Michal

2014-08-07 16:39 GMT+02:00 Nasser M. Abbasi <nma at 12000.org>:
> On 8/7/2014 6:33 AM, Michal Hoftich wrote:
>>
>> 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
>>
>
> The above latex was produced by software Sage version 6.2.
>
> http://www.sagemath.org/doc/tutorial/latex.html
>
> I do not understand what you mean by
>
>
>     "your code generates mathml which is invalid"
>
> I am using tex4ht? Isn't tex4ht which generates the mathml?
>
> The latex itself is generated by sage and I process it by
> tex4ht. If you meant the latex itself is not valid, then I'll
> try to let someone at Sage know they are producing invalid
> Latex then.
>
> Thank you,
>
> --Nasser
>
>
>> 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
>>>
>>
>