How to insert a smaller diagonal into a Matrix?

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Monkeyman
Monkeyman 2018-3-29
评论： Monkeyman 2018-3-29
I'm struggling to generate a matrix M=[0 0 1 0 0; 0 0 0 1 0; 0 0 0 0 1; 0 0 0 0 0; 0 0 0 0 0], quickly without entering each entry by hand. I gather there is a quicker way.
I know I can create the 5x5 identity matrix using M=eye(5) but am unsure how to move the diagonal of 1s across 2. Any help would be appreciated

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Geoff Hayes
Geoff Hayes 2018-3-29
Monkeyman - try using diag as
D = diag([1 1 1],2)

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