>> problem6

err =

        0.0038862832346558
       0.00405084499848804
       0.00995612146471103
      -0.00239655456978016


err2 =

       0.00388628323517579
       0.00405084499074765
       0.00995612145652558
     -0.000376359806274594


err3 =

       0.00388628323480671
       0.00405084499302419
       0.00995612146289204
       -0.0109339117969508


emf =

          3.32100464805924


emf2 =

          3.32100464532886


emf3 =

          3.64716039552628


maxFEDiff =

        0.0109339117969508


maxEMF =

          3.64716039552628