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From: gwyn@brl-vgr.ARPA (Doug Gwyn )
Newsgroups: net.physics
Subject: Re: fitting program for neutron activation experiment.
Message-ID: <3336@brl-vgr.ARPA>
Date: Sun, 8-Apr-84 09:12:49 EST
Article-I.D.: brl-vgr.3336
Posted: Sun Apr  8 09:12:49 1984
Date-Received: Mon, 9-Apr-84 05:52:37 EST
References: <1619@stolaf.UUCP>
Organization: Ballistics Research Lab
Lines: 8

As a grad student in the Physics Dept. at Clark Univ. in Worcester, MA,
I programmed (in portable ANS 66 Fortran) a general non-linear least-
squares curve fitting algorithm, using basically a Marquardt gradient-
expansion algorithm.  This program was in production use to fit noisy
PAC & Mossbauer data (errors were used for weighting).  This would
certainly fit the requirements for fitting your double-exponential data
from the silver experiment.  You should contact the Clark Phys. Dept.
to see about getting this code.  (Bob Suter is a good person to talk to.)