have a look at the following points:
1.- correction: where you say ' .. A[4][3][2]=0.43. This makes it a 4D data ..'
consider instead saying ' .. this makes it 3D matrix ..'
the reason being that your question takes off with the statement matrix size 9*9*9: this is a 3D cube.
A size 9 units 3D cube has volume 9*9*9.
A size 9 4D cube have 4D volume 9*9*9*9.
2.- the link
contains a 4D cube visualized in 3D. They sell visualizations of larger than 3D objects
3.- MATLAB CENTRAL has a very interesting example
4.- Another very popular MATLAB CENTRAL entry is Konsoulas 'Paradoxical Behavior of multidimensional data'
5.- If you are going to find lengths surfaces and volumes in larger than 3D, have a look to Mike Hosea integralN.m
If you find this answer of any help solving this question, please click on the thumbs-up vote link, thanks in advance
John
