[Matlab] prettyPrint function for matrices and vectors

prettyPrint.m

% Function pretty prints given matrix / vector
% @param M: a matrix or a vector to be printed
% @param M_name: name which is displayed in the print (optionl)
% @param precision: specify the amount of decimals to be shown (optional)
function prettyPrint(M, M_name, precision)
    [rows_n, cols_n] = size(M);
     
    % Check optional arguments
    if ~exist('M_name','var'), M_name = 'PrettyPrint'; end
    if ~exist('precision','var'), precision = 3; end
    fprintf('%s:\n', M_name);  
    
    % Loop through the given data and print all items
    for i = 1:rows_n
       for j = 1:cols_n
           fprintf('%12.*f ', precision, M(i, j));
       end
       fprintf('\n');
    end
    fprintf('\n');
end