How can I center my table?

if true
  A = [10 2 -1;-3 -6 2;1 1 5];
b = [27;-61.5;-21.5];
X = zeros(length(b),1);
error = ones(length(b), 1)*100;
iteration = 0;
fprintf('Iteration\t   x1\t\t   x2\t\t    x3\t\tError1\t Error2\t\tError3\t\tMax. error\n')

 while max(error) > 5
    iteration = iteration + 1;
    Z = X;
    for i = 1:length(b)
        j = 1:length(b);
        Xnow = X;
        Xnow(i) = 0;
        X(i) = (b(i) - sum(A(i,j)*Xnow))/A(i,i);
    end
    error = abs((X - Z)./X)*100;
    fprintf(' %4.0f\t\t%4.5f\t\t%4.5f\t\t%8.5f\t%4.2f%%\t %4.2f%%\t\t%4.2f%%\t      %4.2f%%\n', iteration, X(1), X(2), X(3), error(1), error(2), error(3), max(error))
end

end

The code produces the table attached.

How can I straighten the values under Max. error and Error3?

Answer 1

[dpb]

Don't use \t, use fixed-width column of the desired width including the spacing desired and include the flag character ' ' in the field to cause right justification in the field.

>> vals=[100.333 40.1 5.23];
>> fprintf('% 12.2f%%\n',vals)
    100.33%
     40.10%
      5.23%
>>

[Dimitri]

MATLAB should automatically justify to the right. I removed \t from all my code, but it is still justifying to the left. Do you know why?

[dpb]

Yes. You must not have corrected the field widths to be the full width. Observe the second case below carefully--

>> fprintf('%12.2f%%%10.5f\n',[vals' vals'])
    100.33%   40.10000
      5.23%  100.33300
     40.10%    5.23000
>> fprintf('%2.2f%%%10.5f\n',[vals' vals'])
100.33%   40.10000
5.23%  100.33300
40.10%    5.23000
>>

[Dimitri]

Never mind, I figured it out. Thank you. :)