Converting each cell of an array to one block diagonal matrix

I have a cell array where each cell contains different size of square adjacency matrix for example

A = 29x29 double
    30x30 double 
    24x24 double 
    10x10 double

Now I want to create One Block diagonal matrix B from each cell of A such that each cell Of A is in the diagonal in B. Example

   B = [29X29] 0 0 0 0 0 0 0 0  0 0
        0   0 [30x30] 0 0 0 0 0 0 0 
        0   0  0   0  [24X24] 0 0 0
        0   0  0   0   0   0 [10x10]

so B would NxN where N = 29+30+24+10

I tried with the following code but it did not work.

function B =blockD(A)
n=size(A,1);
for i = 1:n
  B=blkdiag(A{i});
end
end

Also at the end I have to row normalised matrix B

Answer 1

[Matt J]

B=blkdiag(A{:});

[Stephen23]

More info on how this works:

https://www.mathworks.com/help/matlab/matlab_prog/comma-separated-lists.html

https://www.mathworks.com/matlabcentral/answers/320713-how-to-operate-on-comma-separated-lists

Answer 2

[Ilias Misailidis]

Hi my name is Ilias and i am new entry to Matlab. I am trying to make a block matrix 9x9 like foto for my homework to university and nothing happened with code.

Someone to help me :-)