how to coampre strings and print

hello im supposed to create a function that gets input of a month and year and im supposed to get output prinnted my problem is that every time the function gets to dates like 10 or 20 it only prints 1 2 so instead of 11 12 13 14...i get 1 12 13 14... i tried doing if w(i,j)='10' fprintf('10') but it says it is not possible to compare strings im not aloowed to usestrcmp

function fprintfmatrix(mat)
w=num2str(mat);
rows=size(w,1);
col=size(w,2);
for i=1:rows;
    for j=1:col;
        if w(i,j)~='0'
             fprintf(w(i,j))
           elseif w(i,j)=='0'; 
            fprintf(' ')
       end
    end

         fprintf('\n')    
  end
  end

Answer 1

[Walter Roberson]

num2str never includes leading '0' when you use it in that form, so there would not seem to be any good reason to emit a blank instead of a 0.