how to create zero column matric and row in beginning of the matrix

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i got a 6x6 matrix but now i have to make it 8x8 where the first two rows and column should be zero

Accepted Answer

Kevin Holly
Kevin Holly on 16 Nov 2022
m = rand(6)
m = 6×6
0.0069 0.8937 0.6615 0.7778 0.8702 0.0865 0.6157 0.2651 0.6701 0.6399 0.4879 0.9692 0.0580 0.9024 0.5732 0.7527 0.4914 0.0875 0.0193 0.1431 0.6512 0.3485 0.3430 0.5308 0.1633 0.5451 0.9625 0.5715 0.0338 0.7193 0.4034 0.8196 0.9789 0.4078 0.5132 0.0587
new = [zeros(8,2) [zeros(2,6);m]]
new = 8×8
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0069 0.8937 0.6615 0.7778 0.8702 0.0865 0 0 0.6157 0.2651 0.6701 0.6399 0.4879 0.9692 0 0 0.0580 0.9024 0.5732 0.7527 0.4914 0.0875 0 0 0.0193 0.1431 0.6512 0.3485 0.3430 0.5308 0 0 0.1633 0.5451 0.9625 0.5715 0.0338 0.7193 0 0 0.4034 0.8196 0.9789 0.4078 0.5132 0.0587

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