例: P(s)=s(s2+2) s2+1 1H B1(S)→ 1F Ni ro- 一十S B2(S) k.-im S2>-1 =1 1 Ln= C.- Kn K例 : 1 ] 1 1 ( 2 ) [ 2 22 1 lim2 s s s s s K s n 2 pnn n K C n n K L 1 1 ( 2 ) ( ) 22 s s s Y s s s s Y s 1 ( ) 2 1 i N 1 B 2 (s) B 1 (s) 1H 1F