create a vector and vector of matrix

[Carlo Rossi]

Hello,
 I need to create a vector; this work but is there something more compact?

repmat(0, length(A), 1)

eg:
0
0
0
0
furthermore as I have to repeat the operation for 5 times, there is the way to do it in a loop as well:
repmat(0, length(A0), 1)
repmat(1, length(A1), 1)
repmat(2, length(A2), 1)
repmat(3, length(A3), 1)

I mean: is it possible to create a vector of matrix indexes a vecot like this
V = [A0 A1 A2 A3] and use V[i] to access to a matrix?

thanks