matrix variable problem in matlab

I have A=[1 2]' I would like to display it in repetitive form as A=[1 2 1 2 1 2 1 2 1 2 1 2]' using loop structure, any help please

Answer 1

[Ankit]

read more about repmat

A = [1 2]';
A = repmat(A,6,1);

[marwa hajji]

thank you