nter = limb.center

      %
      % Check against expected values:
      %
      % Semiminor: 0., 0., -1.
      % Semimajor: 0., 2.,  0.
      % Center   : 1., 0.,  0.
      %

   MATLAB outputs:

      smin =

           0
           0
          -1


      smaj =

           0
           2
           0


      center =

           1.000000000000000e+00
                               0
                               0

</pre><h4><a name="Particulars">Particulars</a></h4><pre>

   The limb of a body, as seen