1NNPNTD(3NCARG)                   NCAR GRAPHICS                  NNPNTD(3NCARG)
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NAME

6       NNPNTD- Interpolate at a single point in double precision
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SYNOPSIS

9       CALL NNPNTD (X, Y, Z)
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DESCRIPTION

12       X           (Double  precision,  Input) - The X coordinate of the point
13                   where interpolation is desired.
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15       Y           (Double precision, Input) - The Y coordinate of  the  point
16                   where interpolation is desired.
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18       Z           (Double  precision,  Output)  - The interpolated functional
19                   value at the point (X,Y).
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USAGE

22       This subroutine is called when you want to interpolate at an  individal
23       point.  NNPNTINITD must be called prior to calling NNPNTD and NNPNTENDD
24       must be called to terminate single point mode.
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ACCESS

27       To use NNPNTD, load the NCAR Graphics library ngmath.
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SEE ALSO

30       natgrid, natgrid_params, natgridd, nnpntinitd, nnpntendd.
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32       Complete documentation for Natgrid is available at URL
33       http://ngwww.ucar.edu/ngdoc/ng/ngmath/natgrid/nnhome.html
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36       Copyright (C) 2000
37       University Corporation for Atmospheric Research
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39       This documentation is free software; you  can  redistribute  it  and/or
40       modify  it  under  the  terms of the GNU General Public License as pub‐
41       lished by the  Free  Software  Foundation;  either  version  2  of  the
42       License, or (at your option) any later version.
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44       This  software  is  distributed in the hope that it will be useful, but
45       WITHOUT ANY  WARRANTY;  without  even  the  implied  warranty  of  MER‐
46       CHANTABILITY  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
47       Public License for more details.
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49       You should have received a copy of the GNU General Public License along
50       with  this  software;  if  not,  write to the Free Software Foundation,
51       Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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56UNIX                            March 1997-1998                 NNPNTD(3NCARG)
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