How can put eigenvalues in ascending order?

Hi,
I am using something like [V,D] = eig(S) and I would like the eigenvalues in ascending order in the diagonal. V, D and S are 2x2 matrices.
Thanks.

回答(1 个)

[~,idx]=sort(diag(D));
D=D(idx,idx);

2 个评论

Thank you for your reply.
I tried this but I got the eigenvalues not in the diagonal. Is it right?
Dt1 =
0 -0.5782
0.6702 0
D(idx,idx) not D(idx,:)

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提问:

2014-9-29

编辑:

2014-9-29

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