\genfrac fails with some delimiters (e.g., <>)
Created by: PeterLuschny
Hi!
\begin{equation}
\sum_{k=0}^n (-1)^k \genfrac < > {0pt}{}{n}{k} = \frac{4^{n+1}-2^{n+1}}{n+1} B_{n+1},
\end{equation}
worked until yesterday, today we have
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
<merror>
<mtext>\begin{equation}
\sum_{k=0}^n (-1)^k \genfrac < > {0pt}{}{n} {k} = \frac{4^{n+1}-2^{n+1}}{n+1} B_{n+1},
\end{equation}</mtext>
</merror>
</math>
Regards Peter Luschny