In the following example, it is assumed that the atoms, atomic-form
factors, and symmetry operators are well defined.
GENErate sets all newly created 
to one, except for
systematic absences, which are indicated by a zero value. The
following example also works if there are reflections already
present. In this case, GENErate complements
the existing reflections
so that a full asymmetric unit within the
specified resolution limits is produced.
FWINDow 0.1 100000. RESOlution 8. 2. GENErate UPDAte WRITe REFLection FCALc END