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Specify Higher-Dimensional Banded Structures
Mathematica 6 provides a powerful symbolic language for specifying arbitrary slices and bands in higher-dimensional arrays.
In[1]:=

Click for copyable input
Graphics3D[

 Cuboid /@ 

  Position[Normal[

    SparseArray[

     Band[{1, 1, 1}, Automatic, {2, 3, 1}] -> Table[x, {10}, {10}]]], 

   x]]
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