title: How to add math formulas in odt document using odfpy?
body: <p>I need to add mathematical formulas in odt document. I have not found an example of how to do it. I tried the following code. But it generates an empty formula. I don't know how to add to it something like c = a + b. Somebody solved a similar problem? The formula should be written by MathML code. But I have no idea where to insert it here.</p>
  
  <pre class="lang-py prettyprint-override"><code>#!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  import odf
  import odf.opendocument
  import odf.math
  import odf.text
  
  def main():
      doc = odf.opendocument.OpenDocumentText()
      p = odf.text.P(text=u'text')
      df = odf.draw.Frame( zindex=0, anchortype='as-char')
      p.addElement(df)
      doc.text.addElement(p)
  
      math = odf.math.Math()
      do = odf.draw.Object()
      do.addElement(math)
      df.addElement(do)
  
      outputfile = u'result'
      doc.save(outputfile, True)
  if __name__ == '__main__':
      main()
  </code></pre>