y|[gۑiWj𓚗z

 

1D

(1)

> g1=tf([3 0 1],[1 0 -5 2]);

 

(2)

> g2=zpk([-2 -3],[-4 1 1],0.5);

 

2D

(1)

vO

> sys1=series(g1,g2)

1.5 s^4 + 7.5 s^3 + 9.5 s^2 + 2.5 s + 3

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

s^6 + 2 s^5 – 12 s^4 – 4 s^3 + 39 s^2 – 34 s + 8

 

 

(2)

vO

> sys2=parallel(g1,g2)

3.5 s^5 + 8.5 s^4 - 19.5 s^3 + 2.5 s^2 – 17 s + 10

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

s^6 + 2 s^5 – 12 s^4 – 4 s^3 + 39 s^2 – 34 s + 8

 

 

(3)

vO

> sys3=parallel(g1,-g2)

2.5 s^5 + 3.5 s^4 - 20.5 s^3 + 25.5 s^2 + 3 s - 2

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

s^6 + 2 s^5 – 12 s^4 – 4 s^3 + 39 s^2 – 34 s + 8

 

 

(4)

vO

> sys4=feedback(g1,g2)

3 s^5 + 6 s^4 – 20 s^3 + 14 s^2 – 7 s + 4

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

s^6 + 2 s^5 - 10.5 s^4 + 3.5 s^3 + 48.5 s^2 - 31.5 s + 11