ncl_c_ftcurvd (3) Linux Manual Page
c_ftcurvd – calculate derivatives
Function Prototype
int c_ftcurvd (int, float [], float [], int, float [], float []);Synopsis
int c_ftcurvd (n, xi, yi, m, xo, yo);Description
- n
- The number of input data points. (n > 1)
- xi
- An array containing the abscissae for the input function.
- yi
- An array containing the functional values of the input function — y(k) is the functional value at x(k) for k=0,n.
- m
- The number of desired derivatives.
- xo
- An array containing the abscissae for the output values.
- yo
- An array containing the interpolated derivative values — yo(k) is the functional derivative at xo(k) for k=0,n.
Return Value
c_ftcurvd returns an error value as per: = 0 — no error.
= 1 — if n is less than 2.
= 2 — if X values are not strictly increasing.
Usage
c_ftcurvd is called after all of the desired values for control parameters have been set using the procedures c_ftseti, c_ftsetr, c_ftsetc. Control parameters that apply to c_ftcurvd are: sig, sl1, sln, sf1.Access
To use c_ftcurvd, load the NCAR Graphics library ngmath.See Also
fitgrid_params, c_ftseti, c_ftsetr, c_ftsetc. Complete documentation for Fitgrid is available at URL
http://ngwww.ucar.edu/ngdoc/ng/ngmath/fitgrid/fithome.html
Copyright
Copyright (C) 2000University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.