take account of the fact that tuples or lists are used to store spares matrices rather than ndarrays of type object
take account of the fact that tuples or lists are used to store spares matrices rather than ndarrays of type object

sawcordwell/pymdptoolbox,silgon/pymdptoolbox,yasserglez/pymdptoolbox,silgon/pymdptoolbox,yasserglez/pymdptoolbox,McCabeJM/pymdptoolbox,sawcordwell/pymdptoolbox,McCabeJM/pymdptoolbox