MATLAB: Row Wise concatenation

Question

I have 2 matrices

a= [ 1 2 3 
     4 5 6 
     7 8 9 ]
B= [9 8 7
    6 5 4 
    3 2 1]

Output should be:

AB= [1 2 3
     9 8 7
     4 5 6
     6 5 4
     7 8 9
     3 2 1]

Answer 1

Try this:

AB = reshape([a, B]', 3, [])' % Interleave arrays.