deletions | additions       diff --git a/untitled.tex b/untitled.tex  index 8825c1c..4206163 100644  --- a/untitled.tex  +++ b/untitled.tex 
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- 628.3{\rm{,}}{\kern 3pt} {\rm{if}}{\kern 3pt}{X_{\rm{P}}} \ge 0.34 \hfill \cr} \right. \label{eq:comp}$$    I want to reference Eq. \ref{eq:comp}. Can this be done in Authorea??  \[\iiint_V {\left( {\nabla \cdot {\mathbf{E}}} \right)}dV = \mathop{{\int\!\!\!\!\!\int}\mkern-21mu \bigcirc}\nolimits_S   {\left( {{\mathbf{E}} \cdot {\mathbf{n}}} \right)} dS\]