Calculate function with given t
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clc
clear all
close all
syms t
A = [-1, 1, 0;
1,-2, 1;
0, 1, -1];
[P,D] = eig(A)
Phi = P*expm(D*t)*inv(P)
thetanot=[0.1;0.3;0.2]
t_t=Phi*thetanot
dt = 1/1000;
t = 0:dt:1000*dt;
S1=sum(t_t(1,1))
Where S1 =
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/404680/image.png)
How do I plot the S1 with t ?
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KSSV
le 6 Nov 2020
Read about fplot/ ezplot.
clc
clear all
close all
syms t
A = [-1, 1, 0;
1,-2, 1;
0, 1, -1];
[P,D] = eig(A)
Phi = P*expm(D*t)*inv(P)
thetanot=[0.1;0.3;0.2]
t_t=Phi*thetanot
dt = 1/1000;
t = 0:dt:1000*dt;
S1=sum(t_t(1,1)) ;
fplot(S1)
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