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Re: gsl_sf_coupling_3j
- From: Serge Winitzki <serge at cosmos dot phy dot tufts dot edu>
- To: Brian Gough <bjg at network-theory dot co dot uk>
- Cc: gsl-discuss at sources dot redhat dot com
- Date: Tue, 15 Oct 2002 09:54:45 -0400 (EDT)
- Subject: Re: gsl_sf_coupling_3j
Filip Floegel writes:
> hello gsl community,
> gsl_sf_coupling_3j doesn't work properly for large angular mementa
The package "matpack" (www.matpack.de) includes many special functions,
also the 3j symbols. They refer to some quite complicated numerical
methods using recursion relations to get the right answers for large
momenta, and to 1975-1976 papers by Schulten and Gordon for the
description of the algorithms. The papers can be downloaded for free at
http://www.ks.uiuc.edu/Publications/Papers/
--
Serge