E(k)=B &(k-1)=B2 &(k-2)=...=Bk (0) (1) limε=0 → lim B*0 k→00 k-→∞ j-- (2) m8)=0=B‖<1 lim[X(-"]=0 k-→00 lim X()=X k-→00 迭代格式Xk+1)=BX+f收敛 44 lim 0 lim 0 ( )      k k k B k (1)   (k) = B  (k-1)=B2  (k-2)=···=Bk  (0) lim [ ] 0 ( ) *    X X k k ( ) * lim X X k k   迭代格式 X(k+1) = B X(k) + f 收敛  (2)     lim 0 ( k ) k  B  1                     k k k                            k k k k k        1 1 1