[Maxima] converting to 2-d list or array

[Kun Lin]

Hi all,

   In maxima a 2X2 matrix
	[1 2]
	[3 4]
is represented as  (($matrix simp)
		    ((mlist simp) 1 2)
		     (mlist simp) 3 4))

how do i covert it into a 2-d array or a nested list( is there an  
exisiting function that does this?)

like #2A((1 2) (3 4)) or '((1 2) (3 4)) ?

- Kun