Test 2
Testing
Test 2: Section 1
\[\begin{equation}
\frac{\partial \mathbf{U}}{\partial t}= \boldsymbol{c}+\text{this text is inside math mode.}
\label{Test1-eq:01}
\end{equation}\]
Referencing Eq.\(\eqref{Test1-eq:01}\).
\[\begin{eqnarray}
\hat{a}x+\hat{b}y&=&\hat{c}\label{Test1-eq:02}\\
\hat{d}x+\hat{e}y&=&\hat{f}.\label{Test1-eq:03}
\end{eqnarray}\]