ADDING ZEROS to the front of array

May I ask for help

I have two arrays like A=[ 111000 ] & B=[ 1111000 ]

I would like to make A become [0111000],or for example if B=[101111000],A becomes[000111000].

Thank you

[Ashmil Mohammed]

So you need to add zeros to the beginning of A for every extra element in B?

Answer 1

[Guillaume]

newA = [zeros(1, max(0, numel(B)-numel(A))), A]

Answer 2

[Image Analyst]

Simply pad the left with zeros if necessary to make them the same length, then AND the vectors. Here it is bot both cases you gave:

% Case #1
A=[1,1,1,0,0,0] 
B=[1,1,1,1,0,0,0]
% Make them the same size.
% If A is shorter, prepend zeros
la = length(A)
lb = length(B)
if la < lb
  A = [zeros(1, lb-la), A]
end
% Do the operation for case #1:
A = A & B

% Now let's do Case #2
A=[1,1,1,0,0,0] 
B=[1,0,1,1,1,1,0,0,0]
% Make them the same size.
% If A is shorter, prepend zeros
la = length(A)
lb = length(B)
if la < lb
  A = [zeros(1, lb-la), A]
end
% Do the operation for case #2:
A = A & B

Answer 3

[Mohammad Sohail Khan]

Thank You