Теория массового обслуживания. Сивохин А.В - 182 стр.

      pff3 = 0.02011914452}

>
SumPi:=rhs(SymPi[1])+rhs(SymPi[2])+rhs(SymPi[3])
+rhs(SymPi[4])+rhs(SymPi[5]);
                                      SumPi := 1.000000000

> SymPi[5];
SymPi[2];
SymPi[3];
SymPi[4];
SymPi[1];
                                      pff3 = 0.02011914452

                                       pff0 = 0.5465940563

                                     pff4 = 0.003040288552

                                      pff2 = 0.09985400299

                                       pff1 = 0.3303925076

>
> Pfi:=solve({-2.17*pf0+3.59*pf1=0,
                      2.17*pf0-
5.76*pf1+7.18*pf2=0,
                      2.17*pf1-
9.35*pf2+10.77*pf3=0,
                      2.17*pf2-
12.94*pf3+14.36*pf4=0,
                      pf0+pf1+pf2+pf3+pf4=1
                   },
                  {pf0, pf1, pf2, pf3, pf4}
                 );
# {p[4](t) = 0.304028620131242475e-2, p[3](t) =
0.201191510889340460e-1, p[2](t) =
0.998539959020817298e-1,
# p[1](t) = .330392511169330827, p[1](t) =
.330392511169330827, p[0](t) =
.546594055638341070}
    Pfi := {pf3 = 0.02011914452, pf2 = 0.09985400299, pf1 = 0.3303925076, pf0 = 0.5465940563,
         pf4 = 0.003040288552}


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