NAME

       c_ftcurvp - 1D interpolation for periodic functions

FUNCTION PROTOTYPE

       int c_ftcurvp (int, float [], float [], float, int, float [], float []);

SYNOPSIS

       int c_ftcurvp (n, xi, yi, p, 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 input functional values (y(k) is the functional value
                   at x(k) for k=0,n).

       p           The period of the function; p must not be less than xi[n-1] - xi[0].

       m           The number of desired interpolated points.

       xo          An array containing the abscissae for the interpolated values.

       yo          An  array  containing  the  interpolated  functional  values  (yo(k)  is   the
                   functional value at xo(k) for k=0,n).

RETURN VALUE

       c_ftcurvp returns an error value as per:

       = 0 -- no error.
       = 1 -- if n is less than 2.
       = 2 -- if the period is strictly less than the span of the abscissae.

USAGE

       c_ftcurvp  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_ftcurvp are: sig.

ACCESS

       To use c_ftcurvp, 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) 2000
       University Corporation for Atmospheric Research

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