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DEM40

       SUBROUTINE  DEM40 (NIN,NOUT)
 C$    (DEM40 - Contour Border)
 C$    Demonstration of the potential felt  by two particles in  a
 C$    Gaussian  well.   The  surface  arises  from  the  use   of
 C$    hyperspherical  harmonics   in  quantum   mechanics.    The
 C$    technique of contour bordering  is to illustrate how  peaks
 C$    and valleys in a contour map can be more easily  recognized
 C$    when they  are represented  by  a border  approximating  an
 C$    edge-on view of the surface.
 C$    (10-APR-82)