Like this:
a = [0 1 2 3];
b = [6; 7; 8; 9]; % Note that b is a column vector and a is a row vector
A = repmat(a,4,1)
A =
0 1 2 3
0 1 2 3
0 1 2 3
0 1 2 3
>> m = b - A
m =
6 5 4 3
7 6 5 4
8 7 6 5
9 8 7 6
>> m = [a; m]
m =
0 1 2 3
6 5 4 3
7 6 5 4
8 7 6 5
9 8 7 6
