Solution:
Matlab Codes;:
For case1:
..............................
%Matlab code
%Clears the output screen
clc
%Case1: for K=[1 44 67]
%statement of K matrix
K = [1 44 67]
%statement of A matrix
A = [-12 -10 -5; 1 0 0; 0 1 0] - [1; 0; 0] * K
%statement of B matrix
B = [1; 0; 0]
%statement of C matrix
C = [3 5 -5]
%statement of D matrix
D = [0]
%statement of State space model, Let's name it G.
G = ss(A,B,C,D);
%Plot of Output for time t;
%where t starts from 0, increment in each step by 0.1, ends at
5
t= [0 : 0.01 : 5 ];
%plot of output
stepplot(G,t)
%Turning on Griding
grid on
Output:
K =
1 44 67
A =
-13 -54 -72
1 0 0
0 1 0
B =
1
0
0
C =
3 5 -5
D =
0
....................
For case2:
..............................
%Matlab code
%Clears the output screen
clc
%Case1: for K=[10 44 67]
%statement of K matrix
K = [10 44 67]
%statement of A matrix
A = [-12 -10 -5; 1 0 0; 0 1 0] - [1; 0; 0] * K
%statement of B matrix
B = [1; 0; 0]
%statement of C matrix
C = [3 5 -5]
%statement of D matrix
D = [0]
%statement of State space model, Let's name it G.
G = ss(A,B,C,D);
%Plot of Output for time t;
%where t starts from 0, increment in each step by 0.1, ends at
5
t= [0 : 0.01 : 5 ];
%plot of output
stepplot(G,t)
%Turning on Griding
grid on
Output:
K =
10 44 67
A =
-22 -54 -72
1 0 0
0 1 0
B =
1
0
0
C =
3 5 -5
D =
0
....................
For case3:
..............................
%Matlab code
%Clears the output screen
clc
%Case1: for K=[44 1 1]
%statement of K matrix
K = [44 1 1]
%statement of A matrix
A = [-12 -10 -5; 1 0 0; 0 1 0] - [1; 0; 0] * K
%statement of B matrix
B = [1; 0; 0]
%statement of C matrix
C = [3 5 -5]
%statement of D matrix
D = [0]
%statement of State space model, Let's name it G.
G = ss(A,B,C,D);
%Plot of Output for time t;
%where t starts from 0, increment in each step by 0.1, ends at
5
t= [0 : 0.01 : 5 ];
%plot of output
stepplot(G,t)
%Turning on Griding
grid on
Output:
K =
44 1 1
A =
-56 -11 -6
1 0 0
0 1 0
B =
1
0
0
C =
3 5 -5
D =
0
....................
For case4:
..............................
Output:
K =
1 67 44
A =
-13 -77 -49
1 0 0
0 1 0
B =
1
0
0
C =
3 5 -5
D =
0
.......................................
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