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DEM01

       SUBROUTINE  DEM01 (NIN,NOUT)
 C$    (DEM01 - Cartesian Surface)
 C$    Demonstrate the  hidden-line  south-east,  south-west,  and
 C$    south stereo views  of a  wrinkled surface  which has  been
 C$    scaled by the hyperbolic tangent onto the range (-1..+1).
 C$    (10-APR-82)