[Tex/LaTex] converting Mathml to LaTeX in python programming

mathmlpython

I am writing one educational software right now. It's kind of online test for school students. I add up the questions using my editor, I need the math functionality therefore I need to use this editor, other editors are very simple and not that smart and powerful like this editor.

But , The editor gives me output into Mathml, now this Mathml also includes style tags along with the main text. Therefore I do not find it feasible to store into the databases. Therefore I am trying to convert the Mathml to LaTeX.

As I am developing the project in Python Django, So I need a Python Library that can do the conversion for me. I have searched many libraries but they just convert the text to Mathml or convert the text to LaTeX. If anyone know about this please let me know.

If anyone has a different solution to convert the Mathml to LaTeX. Please help me out.

Best Answer

The xslt at https://github.com/davidcarlisle/web-xslt/tree/master/pmml2tex makes a reasonable job of making tex from mathml for print It is used to generate many of the sample images in the MathML spec, and the PDF version of the spec, which is generated via latex.

However it isn't really designed to generate archival or editable latex so the tex markup it generates is a mess.

Still it might give you are start, although to be honest the reasons for needing latex rather than mathml were not that clear.

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[Tex/LaTex] Rendering MathML in LaTeX

You can get TeX to parse the MathML, see for example xmltex, https://www.ctan.org/pkg/xmltex which comes with some mathml setup, however I wouldn't do it that way these days, I'd convert the MathML using XSLT, see for example pmml2tex which is available on github

[Tex/LaTex] Relationship between MathML and TeX

MathML is very verbose and is a pain to write manually, which is no problem if your code is automatically generated. For programs it is easy to parse, since it is XML.

TeX math code was designed to be written by humans and results in much shorter code. I cannot answer your question if one format will replace the other. As I mentioned they serve different purposes.

Is there any attempt to automatically transform one into the other that anyone is aware of?

I cannot speak for LaTeX, but in ConTeXt you can input MathML directly. Information about MathML in ConTeXt and the Wiki - MathML. Here is an example (credits to Hans Hagen) taken from one of the ConTeXt manuals:

\usemodule[mathml]
\starttext
\xmlprocessdata{}{
<?xml version="1.0" encoding="UTF-8"?>
<math xmlns="http://www.w3c.org/mathml" version="2.0">
  <apply>
    <eq/>
    <apply>
      <diff/>
      <bvar>
        <ci> x </ci>
      </bvar>
      <apply>
        <root/>
        <ci> u </ci>
      </apply>
    </apply>
    <apply>
      <times/>
      <apply>
        <divide/>
        <cn> 1 </cn>
        <apply>
          <times/>
          <cn> 2 </cn>
          <apply>
            <root/>
            <ci> u </ci>
          </apply>
        </apply>
      </apply>
      <apply>
        <diff/>
        <bvar>
          <ci> x </ci>
        </bvar>
        <ci> u </ci>
      </apply>
    </apply>
  </apply>
</math>
}{}
\stoptext

The output: output

For a TeX to MathML conversion, you can use the XML export, see ConTeXt wiki - epub and my answer to the question Converting ConTeXt document to HTML.

Best Answer

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[Tex/LaTex] Relationship between MathML and TeX

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