Move matrix rows and columns

I have a n*n matrix. I want to convert it to n^2*1 matrix. for example: A=[a b;c d] result B=[a;b;c;d]

Answer 1

[Matt J]

B=reshape(A.',[],1);

[Matt J]

It would be better if you organized your a b c d data column-wise in A instead of row-wise. Then you wouldn't have to transpose A, which is expensive. Also, you could just do

B=A(:);

[Amir Ehsani]

Thanks