How can I convert matrix to cell array of strings?

I want to convert the following:

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

into the following array of strings,

 arr = {'1,2(3)', '4,5(6)', '7,8(9)'};

How can I do that?

[Stephen23]

Since R2016b:

mat = [1,2,3; 4,5,6; 7,8,9];
compose('%u,%u(%u)',mat)

ans = 3x1 cell array
    {'1,2(3)'}
    {'4,5(6)'}
    {'7,8(9)'}

Answer 1

[OCDER]

You could use sprintf.

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

 arr = cell(1, size(mat, 1));
 for k = 1:numel(arr)
     arr{k} = sprintf('%d,%d(%d)', mat(k,:));
 end

 arr = 

    '1,2(3)'    '4,5(6)'    '7,8(9)'

Answer 2

[KSSV]

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

arr = {'1,2(3)', '4,5(6)', '7,8(9)'};
nx = size(mat,1) ;
iwant = strcat(num2str(mat(:,1)),',',num2str(mat(:,2)),repelem('(',nx,1),num2str(mat(:,3)),repelem(')',nx,1))