y|[gۑiWj𓚗z

1D

(1)

> g1=tf([1 3 1],[1 4 0 1]);

 

(2)

> g2=zpk([-2 3],[-1 0.5 2],0.5);

 

2D

(1)

vO

> sys1=series(g1,g2)

0.5 s^4 + s^3 4 s^2 - 9.5 s - 3

-------------------------------------------------------

s^6 + 2.5 s^5 - 7.5 s^4 4 s^3 + 2.5 s^2 - 1.5 s^1 + 1

 

(2)

vO

> sys2=parallel(g1,g2)

1.5 s^5 + 3 s^4 10 s^3 - 16.5 s^2 + s - 2

-----------------------------------------------------

s^6 + 2.5 s^5 - 7.5 s^4 4 s^3 + 2.5 s^2 - 1.5 s + 1

 

(3)

vO

> sys3=parallel(g1,-g2)

0.5 s^5 + 6.5 s^2 + 2 s + 4

-----------------------------------------------------

s^6 + 2.5 s^5 - 7.5 s^4 4 s^3 + 2.5 s^2 - 1.5 s + 1

 

(4)

vO

> sys4=feedback(g1,g2)@܂́@sys4=feedback(g1,g2,-1)

s^5 + 1.5 s^4 5 s^3 5 s^2 + 1.5 s + 1

--------------------------------------------------

s^6 + 2.5 s^5 7 s^4 3 s^3 - 1.5 s^2 11 s - 2