47.6 NrSubs

NrSubs( tom )

NrSubs returns the list of lists of numbers of subgroups of the table of marks tom. If these are not yet stored in the component nrSubs of tom then they will be computed and assigned to the component nrSubs.

NrSubs also has to compute the orders and lengths from the marks.

    gap> NrSubs( a5 );
    [ [ 1 ], [ 1, 1 ], [ 1, 1 ], [ 1, 3, 1 ], [ 1, 1 ], [ 1, 3, 1, 1 ], 
      [ 1, 5, 1, 1 ], [ 1, 3, 4, 1, 1 ], [ 1, 15, 10, 5, 6, 10, 6, 5, 1 ] 
     ]

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