Equation not rendering in notebook example about PMF

The following equation
E = \frac{1}{2} \sum_{i=1}^N \sum_{j=1}^M I_{ij} (R_{ij} - U_i V_j^T)^2 + \frac{\lambda_U}{2} \sum_{i=1}^N \|U\|_{Fro}^2 + \frac{\lambda_V}{2} \sum_{j=1}^M \|V\|_{Fro}^2,

under cell [8] of the notebook example on PMF does not render.

[fonnesbeck]

Can anyone else reproduce this? I cannot.

[ColCarroll]

Works fine for me and on github, though it looks like github's parser is
having trouble with the command defined below cell [7] in the notebook:
"$\newcommand\given[1][]{:#1\vert:}$".
https://github.com/pymc-devs/pymc3/blob/master/docs/source/notebooks/pmf-pymc.ipynb

On Tue, Oct 18, 2016 at 3:41 PM Chris Fonnesbeck notifications@github.com
wrote:

Can anyone else reproduce this? I cannot.

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