Index exceeds the number of array elements. Index must not exceed 4.

Question

Ivan 2023-11-30

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2054594-index-exceeds-the-number-of-array-elements-index-must-not-exceed-4

编辑： Image Analyst 2023-12-1

m = 3;
k = 120;
w2 = k/m;
beta = 1/12;
gamma = 1/2;
dt1 = 1/sqrt(k/m);
t1 = 0:dt1:5;
nt1 = length(t1)
nt1 = 32
autovalores1 = zeros(nt1,1);
for i = 1:nt1
    G1 = [(1-(1/2-beta)*w2.*t1(i).^2)/(1+(beta*w2.*t1(i).^2)),t1(i)/(1+(beta*w2.*t1(i).^2));
        w2.*t1(i).*((gamma/2-beta)*w2.*t1(i).^2-1)/(1+(beta*w2.*t1(i).^2)),(1+(beta-gamma)*w2.*t1(i).^2)/(1+(beta*w2.*t1(i).^2))];
    autovalores1(i) = abs(eig(G1(i)));
end
Index exceeds the number of array elements. Index must not exceed 4.

How do I fix this?

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Answer 1

Torsten 2023-11-30

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2054594-index-exceeds-the-number-of-array-elements-index-must-not-exceed-4#answer_1363414

编辑：Torsten 2023-12-1

在 MATLAB Online 中打开

Maybe you mean

for i = 1:nt1
    G1 = [(1-(1/2-beta)*w2.*t1(i).^2)/(1+(beta*w2.*t1(i).^2)),t1(i)/(1+(beta*w2.*t1(i).^2));
        w2.*t1(i).*((gamma/2-beta)*w2.*t1(i).^2-1)/(1+(beta*w2.*t1(i).^2)),(1+(beta-gamma)*w2.*t1(i).^2)/(1+(beta*w2.*t1(i).^2))];
    autovalores1(i) = abs(max(eig(G1)))
end

?

Or maybe

autovalores1(i) = max(abs(eig(G1)))

? I'm not sure.