If I have an nxn matrix, how do I compute it's j'th principal minor using matlab?

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If I have an nxn matrix, how do I compute it's j'th principal minor using matlab?
the j'th principal minor is the jxj matrix in n consisting of the first j rows and columns

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Ameer Hamza
Ameer Hamza 2020년 10월 12일
M; % nxn matrix
Mj = M(1:j,1:j)

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