I'm trying to get latex symbols in the label \tag{} for equations using the siam latex template.
Not sure why it's bringing up the error $\lambda$ works in text just fine but if I use \tag{$\lambda$} it throws an error can anyone help?
\documentclass[review,onefignum,onetabnum]{siamart190516}
\usepackage{amssymb}
\headers{An Example Article}{D. Doe, P. T. Frank, and J. E. Smith}
\begin{document}
$\lambda$
\begin{equation}
\label{eq:beq}\tag{$lambda$}
\sum_{v} a^C_v x_v \geq 1,
\end{equation}
\end{document}
siamart190516is not a common class file, so I can't check any solution. But it works fine if I\usepackage{amsmath}. – Teepeemm Aug 31 '21 at 19:34\tag{\ensuremath{\lambda}}works. – egreg Aug 31 '21 at 21:11