texmath-0.9.4: tests/writers/19.eqn

left [ matrix{
ccol{ {{partial x sub 1} over {partial y sub 1}} above ~ above {{partial x sub 1} over {partial y sub 2}} }
ccol{ {{partial x sub 2} over {partial y sub 1}} above {{partial x sub 2} over {partial y sub 2}} }
} right ] left ( matrix{
ccol{ 1 above 3 }
ccol{ 2 above 4 }
} right ) left { matrix{
ccol{ 1 above 3 }
ccol{ 2 above 4 }
} right } left ∣ matrix{
ccol{ 1 above 3 }
ccol{ 2 above 4 }
} right ∣ left ∥ matrix{
ccol{ 1 above 3 }
ccol{ 2 above 4 }
} right ∥