Provided by: libncarg-dev_6.6.2.dfsg.1-10build2_amd64 bug

NAME
       CURVS2 - calculates an interpolated value for a smoothing spline under tension at a given point.


SYNOPSIS
       FUNCTION CURVS2(T,N,PARAM,X,Y,XP,YP,SIGMA,XO,YO)

       This  subroutine  is  a  companion to CURV1S which must be called before calling this subroutine.  CURV2S
       calculates an interpolated value for a smoothing spline under tension at a given point.


DESCRIPTION
       T           (real, input) A real value to be mapped onto the interpolating curve.  Values  of  T  between
                   zero  and  one  interpolate  the  original data; any values of T outside this range result in
                   extrapolation.

       N           (integer, input)  The number of points which were specified to determine the curve in CURVS1.

       PARAM       (real, input) The arc lengths as computed by CURVS1.

       X           (real, input) An array containing the X-coordinate values of the specified points.

       Y           (real, input) An array containing the Y-coordinate values of the specified points.

       XP          (real, input) An array of second derivative values as calculated by CURVS1.

       YP          (real, input) An array of second derivative values as calculated by CURVS1.

       SIGMA       (real, input) Tension factor. Values near zero result in a cubic spline; large  values  (e.g.
                   50) result in nearly a polygonal line. A typical value is 1.

       XO          (real, output) The interpolated X value.

       YO          (real, output) The interpolated Y value.


ACCESS
       To use CURV2, load the NCAR Graphics library ngmath.


SEE ALSO
       curvs1, fitgrid_params.

       Complete documentation for Fitgrid is available at URL
       http://ngwww.ucar.edu/ngdoc/ng/ngmath/fitgrid/fithome.html


COPYRIGHT
       Copyright (C) 2000
       University Corporation for Atmospheric Research

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

UNIX                                               August 2002                                    CURVS2(3NCARG)