Re: polynomial approximation for twenty data points
- To: mathgroup at smc.vnet.net
- Subject: [mg19841] Re: polynomial approximation for twenty data points
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Sun, 19 Sep 1999 01:20:26 -0400
- Organization: Universitaet Leipzig
- References: <7rsirl$3qs@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi arthur, what means utilized for your case. Mathematica's Interpolation[] will do what you want. otherwise, if you need an interpolation in your own C/Fortran code, the answer is not so simple as it seems. a) you can use a Lagrange interpolation but for 20 points it will probably an oscillating function and not usable for you b) you can make a cubic spline approximation, that uses picewise third order polynoms or one of the other 1001 interpolation algorithms. Look at netlib.org for a code. Hope that helps Jens arthur p rohr wrote: > > hello is there any programs on the web that can be down loaded and > utilized for my case? > art.