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

Thu, 07 Aug 2014 07:41:04 -0700 

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 <[email protected]>:

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

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