[例7]直接公式法 A C(s) G,(s) R(s) 1+2±)G.句 School of Mechanical Engineering ME369-Lecture 4.2 Shanghai Jiao Tong University Fall 2015 代数运算 ②a5图回 x a. d. School of Mechanical Engineering ME369-Lecture 4.2 Shanghai Jiao Tong University Fall 2015 1111 ME369-Lecture 4.2 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University 1 ( ) ( ) ( ) 1 ( ) ( ) A n Bi i C s G s R s G s      [例7]直接公式法 ME369-Lecture 4.2 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University 代数运算