1 ## Copyright (C) 2000 Kai Habel
3 ## This program is free software; you can redistribute it and/or modify
4 ## it under the terms of the GNU General Public License as published by
5 ## the Free Software Foundation; either version 2 of the License, or
6 ## (at your option) any later version.
8 ## This program is distributed in the hope that it will be useful,
9 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
10 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 ## GNU General Public License for more details.
13 ## You should have received a copy of the GNU General Public License
14 ## along with this program; If not, see <http://www.gnu.org/licenses/>.
17 ## @deftypefn {Function File} {@var{pp} = } csapi (@var{x}, @var{y})
18 ## @deftypefnx {Function File} {@var{yi} = } csapi (@var{x}, @var{y}, @var{xi})
19 ## cubic spline interpolation
21 ## @seealso{ppval, spline, csape}
24 ## Author: Kai Habel <kai.habel@gmx.de>
27 function ret = csapi (x, y, xi)
29 ret = csape(x,y,'not-a-knot');