title: iPython Notebook and Mathjax labeled equations
body: <p>When I write the following in markdown mode in the iPython notebook:</p>
  
  <pre><code>\begin{equation}
  \begin{split}
  \dot u &amp;= \pm u^2 +\delta u^3\\
  \dot v &amp;= v\\
  \dot w &amp;= -w,
  \end{split}\label{eq:nf1}
  \end{equation}
  
  Equation \eqref{eq:nf1} bla bla bla ...
  </code></pre>
  
  <p>It does not render. It seems that the problem is </p>
  
  <pre><code>\label{eq:nf1}
  </code></pre>
  
  <p>since if I take it out, it renders. </p>
  
  <p>I am doing references since at the end of the day I want to convert all I did to latex+PDF. In the PDF output I do receive numbered and well referenced equations, which is what I want. But It would be nice to also have the rendered equation in the iPython Notebook.</p>
  
  <p>Is there a workaround for this? This is, can I render labeled equations in iPython Notebook?</p>