lgebraic formulas, the rational
index r of the state q can be given by the following equivalent formulations:

o-------------------------------------------------------------------------------o
|                                                                               |
|  r(q)    =   Sum_k d_k . 2^(-k)          =   Sum_k d^k.A(q) . 2^(-k)          |
|                                                                               |
|  =                                                                     