Torsion problem, Case 1                                     
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     General constants :

     Number of elements...............   20
     Number of internal points........   11
     Number of Gauss points...........    4
     Node where the potential is null.   16


     Problem data:

   node            x coor         y coor

      1            0.2500         0.9682
      2            0.4937         0.8697
      3            0.7032         0.7110
      4            0.8642         0.5032
      5            0.9655         0.2606
      6            1.0000         0.0000
      7            0.9655        -0.2606
      8            0.8642        -0.5032
      9            0.7032        -0.7110
     10            0.4937        -0.8697
     11            0.2500        -0.9682
     12            0.9748        -1.7170
     13            1.9780        -2.0000
     14            2.9870        -1.7390
     15            3.7280        -1.0060
     16            4.0000        -0.0000
     17            3.7280         1.0060
     18            2.9870         1.7390
     19            1.9780         2.0000
     20            0.9748         1.7170

   node     code      potential    flux before     flux after

      1       1         0.00000       -0.86960       -0.13140
      2       1         0.00000        0.13140       -0.13140
      3       1         0.00000        0.13140       -0.13140
      4       1         0.00000        0.13140       -0.13140
      5       1         0.00000        0.13140       -0.13140
      6       1         0.00000        0.13140       -0.13140
      7       1         0.00000        0.13140       -0.13140
      8       1         0.00000        0.13140       -0.13140
      9       1         0.00000        0.13140       -0.13140
     10       1         0.00000        0.13140       -0.13140
     11       1         0.00000        0.13140        0.86960
     12       1         0.00000        1.91200        1.40400
     13       1         0.00000        2.44600        1.41500
     14       1         0.00000        2.45800        0.90080
     15       1         0.00000        1.94300        0.00000
     16       1         0.00000        1.04200       -1.04200
     17       1         0.00000       -0.00000       -1.94300
     18       1         0.00000       -0.90080       -2.45800
     19       1         0.00000       -1.41500       -2.44600
     20       1         0.00000       -1.40400       -1.91200



     Torsion problem, Case 1                                     
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     SOLUTION ON THE BOUNDARY:

     boundary points

      node      potential    flux before    flux after

         1       -3.69865       -0.86960       -0.13140
         2       -3.39672        0.13140       -0.13140
         3       -2.79182        0.13140       -0.13140
         4       -1.97814        0.13140       -0.13140
         5       -1.02480        0.13140       -0.13140
         6       -0.00000        0.13140       -0.13140
         7        1.02480        0.13140       -0.13140
         8        1.97814        0.13140       -0.13140
         9        2.79182        0.13140       -0.13140
        10        3.39672        0.13140       -0.13140
        11        3.69865        0.13140        0.86960
        12        4.22444        1.91200        1.40400
        13        4.45676        2.44600        1.41500
        14        3.74154        2.45800        0.90080
        15        2.13375        1.94300        0.00000
        16        0.00000        1.04200       -1.04200
        17       -2.13375       -0.00000       -1.94300
        18       -3.74154       -0.90080       -2.45800
        19       -4.45676       -1.41500       -2.44600
        20       -4.22444       -1.40400       -1.91200


     SOLUTION IN THE DOMAIN:

     internal points

    x coor    y coor      potential

     1.250     0.000         -0.000
     1.500     0.000         -0.000
     1.750     0.000         -0.000
     2.000     0.000         -0.000
     2.250     0.000         -0.000
     2.500     0.000         -0.000
     2.750     0.000         -0.000
     3.000     0.000         -0.000
     3.250     0.000         -0.000
     3.500     0.000         -0.000
     3.750     0.000         -0.000