54.3 Delta

Delta( G )

returns for a solvable group G the list [ 1, alp[2]-alp[1], ..., alp[n]-alp[n-1] ] where alp = Alpha( G ) (see Alpha).

    gap> Delta( Sl23 );
    [ 1, 2, 0 ]
    gap> Delta( S4 );
    [ 1, 1, 1 ]