function mid2_10()
  format long e
  g1 = @(x) x(1) + 2*x(2) + 0.03*sin(x(1)+x(2)) - 4;
  g2 = @(x) 5*x(1) + 6*x(2) + 0.07*cos(x(1)-x(2)) - 8;
  
  J11 = @(x) 1 + 0.03*cos(x(1)+x(2));
  J12 = @(x) 2 + 0.03*cos(x(1)+x(2));
  J21 = @(x) 5 - 0.07*sin(x(1)-x(2));
  J22 = @(x) 6 + 0.07*sin(x(1)-x(2));
  
  x0 = [0, 0];
  for i = 1 : 4
    y0 = [g1(x0), g2(x0)];
    J = [J11(x0) J12(x0); J21(x0) J22(x0)];
    h = -J\y0';
    x = x0' + h;
    x0 = x';
  end
  x'
end