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DEM20

       SUBROUTINE  DEM20 (NIN,NOUT)
 C$    (DEM20 - Spiny Spherical View)
 C$    Demonstration  for  the  program   HIDSV,  which  shows   a
 C$    perspective view  of functions  defined over  a sphere.   A
 C$    grid of  spines  is placed  on  the  figure as  an  aid  to
 C$    locating contours.  Each  spine is rounded  up to the  next
 C$    tenth.
 C$    (10-APR-82)