Array inside an array

I have to insert a 3x1 matrix into a another matrix where this 3x1 matrix would be the first element of that matrix. Can anyone please tell me how do i do that?

Answer 1

[Jan]

The elements of a matrix cannot be a matrix again. But you can insert the elements, such that the array grows:

x = 1:3;
y = 7:9;

insertAt = 1
joined   = [x(1:insertAt - 1), y, x(insertAt + 1:end)]

% joined =
%     7     8     9     2     3

Answer 2

[Mario Malic]

Hi,

You can do this with cell arrays

a =cell(3,1);
b = rand(3,1)
b =
    0.8147
    0.9058
    0.1270 
a{1} = b
a =
  3×1 cell array
    {3×1 double}
    {0×0 double}
    {0×0 double}