How to create an array from an mxn size matrix where the elements are the elements of the subsequent columns?

Create an array from an mxn size matrix where the elements are the elements of the subsequent columns.

[James Tursa]

Please give a short example of input and output. Also post what you have done so far.

Answer 1

[Azzi Abdelmalek]

A(:)

or

reshape(A,[],1)