 = 4.3.
          DPAR(j), j=4,5,6,7: These arguments are only used to
                              generate Example 4.2 and define in
                              consecutive order the intervals
                              ['beta_1', 'beta_2'],
                              ['gamma_1', 'gamma_2'].
          NOTE that if DEF = 'D' or 'd', the values of DPAR entries
          on input are ignored and, on output, they are overwritten
          with the default parameters.

  IPAR    (input/output) INTEGER