NAME

       NNGETSLOPED - retrieve the double precision slope at a specified coordinate.

SYNOPSIS

       CALL NNGETSLOPED (I,J,SLOPE,IER)

DESCRIPTION

       I           (Integer,  Input) - A subscript indexing the first dimensioned variable in the
                   output grid of the most recent call to NATGRIDD.

       J           (Integer, Input) - A subscript indexing the second dimensioned variable in the
                   output grid of the most recent call to NATGRIDD.

       SLOPE       (Double  precision,  Output)  - The slope at the grid point Z(I,J), where Z is
                   the output grid in the most recent call to NATGRIDD.

       IER         (Integer, Output) - An error return value. If IER is returned as  0,  then  no
                   errors  were  detected.  If  IER  is  non-zero, then refer to the man page for
                   natgrid_errors for details.

ACCESS

       To use NNGETSLOPED, load the NCAR Graphics library ngmath.

SEE ALSO

       natgrid, natgridd, natgrid_params.

       Complete documentation for Natgrid is available at URL
       http://ngwww.ucar.edu/ngdoc/ng/ngmath/natgrid/nnhome.html

COPYRIGHT

       Copyright (C) 2000
       University Corporation for Atmospheric Research

       The use of this Software is governed by a License Agreement.