What is the correct NDArray behavior of printf?

[David Bateman]

The behavior of Matlab for printf, kron etc, is to horizontally or
vertically stack the 2-D cuts of the NDArray objects. Thus in matlab

a = [1, 2; 3, 4]; a(:,:,2) = [5, 6; 7, 8]; sprintf('%f %f\n', a)

is legal and give

ans =

1.000000 3.000000
2.000000 4.000000
5.000000 7.000000
6.000000 8.000000


However, printf etc in octave called with NDArray arguments gives an
error (when trying to transpose the NDArray). 

What is the correct behavior for these functions called with NDArrays?
Is the Matlab behavior of reducing these arrays to 2-D objects the way
to go? 

This affects quite a few functions in octave, and I'm not particularly
happy with the matlab format. Does anyone have any thoughts on what
is the correct behavior?

Regards
D. =

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