Algorithm for a commutation matrix
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Hi everybody, need help to design a Matlab code function that creates a commutation matrix K of size (mn,mn) such that, for a (m,n) matrix A:
vec(A')=K vec(A)
where the vec operator is such that, for example, if:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/159150/image.png)
Thanks for your help.
best,
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Walter Roberson
2016-3-28
You have not defined Commutation Matrix correctly. You have defined it in terms of Conjugate Transpose, but it is instead defined in terms of Transpose.
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