texmath-0.9.4: tests/writers/mathTable1.eqn
matrix{
ccol{ {xxx over y} above {x over y} above {x over y} }
ccol{ bbbb above y above 2 }
ccol{ c above z above 333333 }
}
matrix{
ccol{ {xxx over y} above {x over y} above {x over y} }
ccol{ bbbb above y above 2 }
ccol{ c above z above 333333 }
}