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

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sanket neharkar
sanket neharkar 2022-11-16
回答： Kevin Holly 2022-11-16
i got a 6x6 matrix but now i have to make it 8x8 where the first two rows and column should be zero

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Kevin Holly
Kevin Holly 2022-11-16
Ran in:
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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