=410+ap20++ar.0+6回 dt =10+an20+…+a2nn0+b,0 dt 5a=dn ()(+dm()+ba( dt 令 x(t)=[x(t),x2(t),…,xn(t)] b(t)=[b(t),b2(t),…,bn(t)] 111 11 1 12 2 1 1 2 21 1 22 2 2 2 11 2 2 () () () () () () () () () () () () n n n n n n n nn n n dx axt ax t ax t bt dt dx axt ax t a x t bt dt dx axt a x t a x t bt dt = + ++ + = + ++ + = + ++ +     令 T 1 2 ( ) [ ( ), ( ), , ( )] n xt x t x t x t =  T 1 2 ( ) [ ( ), ( ), , ( )] n bt b t b t b t =  11