Error while executing the simulation?

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Virendra Kowale
Virendra Kowale 2021-2-14
评论： Star Strider 2021-2-14
clear all
close all
clc
s = -14.5
A = [-3, 5, -7, 0; 0.5, -1.5, 0.5, -7.5; -5, 0, -3, 0; -0.5, -5, 0, -7];
B = [1, 0; 0, -1; -2, 0; 0, 1];
C = [1, 0, 0, 0; 0, -1, 0, 0];
D = [-1, 0; 2, 0];
sys = ss(A,B,C,D);
M = (s*eye(4,4) - A);
P = [ M, -B; C, D]
k = rank(P)
uM = null(P,'r')
I = transpose(uM)
%sys2 = tf( sys );
t = linspace(0, 2.5, 10).';
x_zero = transpose([0,0,0,-0.1333])
u = x_zero.*exp(-14.5*t)
x0= initial(sys,x_zero)
[y,t] = lsim(sys ,u , t)
error that I am receiving:-
Matrix dimensions must agree.
Error in antiresonance_part_two (line 36)
u = x_zero.*-exp(-14.5*t)

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Star Strider
Star Strider 2021-2-14
See my Answer to your duplicate Question how to simulate using lsim command I am receiving error because of variable 't'(time). It took a few minutes to find out what the problem was and then propose a solution.
  2 个评论
Virendra Kowale
Virendra Kowale 2021-2-14
sorry I forgot to remove this question. Thanks a ton. Once again

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