MATLAB: How to create diagonal block matrix

block matrixdiagonal matrix

I am trying to write code for the above matrix. I am very new to MATLAB programming. If anyone can help me in someway, It will be very nice. Thank you.

Best Answer

How about this?
>> blkdiag(reshape(1:9,3,3)', [1,2;4,5], [1,2;4,5], 1, 1)
ans =
     1     2     3     0     0     0     0     0     0
     4     5     6     0     0     0     0     0     0
     7     8     9     0     0     0     0     0     0
     0     0     0     1     2     0     0     0     0
     0     0     0     4     5     0     0     0     0
     0     0     0     0     0     1     2     0     0
     0     0     0     0     0     4     5     0     0
     0     0     0     0     0     0     0     1     0
     0     0     0     0     0     0     0     0     1
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