CURVD(3NCARG) | NCAR GRAPHICS | CURVD(3NCARG) |
CURVD - derivatives for 1D functions.
FUNCTION CURVD (T, N, X, Y, YP, SIGMA)
This function calculates a derivative at a specified point using a spline under tension. CURV1 must be called prior to calling CURVD, and the values thus obtained used as input to CURVD. The derivative value is returned.
CURVD returns the derivative value of the interpolated curve at the specified point T.
To use CURVD, load the NCAR Graphics library ngmath.
curv1, fitgrid_params.
Complete documentation for Fitgrid is available at URL
http://ngwww.ucar.edu/ngdoc/ng/ngmath/fitgrid/fithome.html
Copyright (C) 2000
University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.
March 1998 | UNIX |