All combinations of cell arrays

Hello! I have several matrices of different sizes, which i want to combine per row.

For example i have these ones:

A= [1 2 3     B= [1 6
    1 2 4         4 5]
    1 3 5]

As an ouput i would like to have:

C= [1 2 3 1 6
    1 2 3 4 5
    1 2 4 1 6
    1 2 4 4 5
    1 3 5 1 6
    1 3 5 4 5]

I tried to convert it into two cell arrays and use ndgrid, but something doesn't work and i get the wrong combinations.

Thanks in advance!

[Jan]

There are no cell arrays in the question, but 2 matrices.

Answer 1

[Walter Roberson]

A= [1 2 3
    1 2 4 
    1 3 5];
B = [1 6
     4 5];
nA = size(A,1);
nB = size(B,1);
[Aidx, Bidx] = meshgrid(1:nA, 1:nB);
C = [A(Aidx,:), B(Bidx,:)]

C = 6×5

1 2 3 1 6 1 2 3 4 5 1 2 4 1 6 1 2 4 4 5 1 3 5 1 6 1 3 5 4 5

[L. Edwin M.]

Thanks!

Answer 2

[Jan]

A = [1 2 3; ...
     1 2 4 ; ...
     1 3 5];
B = [1 6; ...
     4 5];

C = [repelem(A, size(B, 1), 1), ...
     repmat(B,  size(A, 1), 1)]

C = 6×5

1 2 3 1 6 1 2 3 4 5 1 2 4 1 6 1 2 4 4 5 1 3 5 1 6 1 3 5 4 5