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From: mouli@alberta.UUCP (Bopsi Chandramouli)
Newsgroups: net.graphics
Subject: Re: Curve fitting algorithms
Message-ID: <112@alberta.UUCP>
Date: Sat, 25-Feb-84 23:15:32 EST
Article-I.D.: alberta.112
Posted: Sat Feb 25 23:15:32 1984
Date-Received: Sun, 26-Feb-84 23:28:30 EST
References: <2557@azure.UUCP>
Organization: U. of Alberta, Edmonton, AB
Lines: 2

How about Orthogonal Polinomials. You can even find the best degree.