In matlab, how to increase the dimension of a matrix? -

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i have matrix a=(1 2; 3 4), , want augment a b = (1 2 0; 3 4 0; 0 0 0), can ?

one way is: b = [[a, zeros(2,1)]; zeros(1,3)]

but might clumsy in dynamic process, other ideas ?

b=a b(3,3)=0

matlab fills other elements automatically zeros


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