texmath-0.7: tests/writers/mtable-03.tex
\begin{array}{ll}
H & A \\
T & I \\
U & Y \\
\end{array} = \begin{array}{ll}
A & H \\
I & T \\
Y & U \\
\end{array}
\begin{array}{ll}
H & A \\
T & I \\
U & Y \\
\end{array} = \begin{array}{ll}
A & H \\
I & T \\
Y & U \\
\end{array}