| I'd like to be able to use multidimensional matrices
| like A(1,1,1) or A(1,1,1,1) which would refer
| to a three (four) dimensional matrice.
| Is there any way to do such operations?
No, Octave doesn't support arrays with more than two dimensions.
Support for multidimensional arrays is listed in the current PROJECTS
file and some work is being done, but I don't know when or if it will
appear in an Octave release. If you're interested in working on this
or other projects for Octave, please contact me.