texmath-0.9.4: tests/writers/mfenced-02.eqn
left { matrix{
ccol{ A above D above G }
ccol{ B above E above H }
ccol{ C above F above I }
} right }
left { matrix{
ccol{ A above D above G }
ccol{ B above E above H }
ccol{ C above F above I }
} right }