Block-diagonalization of a matrix

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Rodolphe Momier 2020-4-7

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评论： Rik 2021-4-13

Hello everyone,

It is possible to block-diagonalize a matrix in Matlab?

I have a matrix composed of 1x1, 2x2 and 3x3 blocks and I would like to obtain the eigenvalues and eigenvectors sorted according to the block they correspond to.

When I use the eig command, i obtain the eigenvalues sorted in ascending order.

Thanks is advance.

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Rik 2021-4-13

Here as well: what is unclear about this question? Instead of flagging, you could also edit your question or comment.

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回答（1 个）

Christine Tobler 2020-4-7

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There is no direct function to do this. The best is probably to write a function that does a loop through the different blocks and calls eig on each block separately.