Re: GSL_Wigner_6J error

[Gerard Jungman <jungman at lanl dot gov>]

On Thu, 2002-11-21 at 04:57, Brian Gough wrote:
> We should use the most definitive version of 6j and 9j.  Here
> is my suggestion:
> 
> http://wwwinfo.cern.ch/asdoc/psdir/shortwrups.dir/u111.ps.gz

Peter Roche wrote:
> I think the simplest way to solve the problem is change the
> manual entry, rather than the source code?
>
> Regards,
> Peter


Well, after all two votes were counted, it's a tie.

I have to favor Brian here. The error in the interface
is just a dumb mistake on my part. The current function
actually calculates the Wigner function in the permuted
form directly related to Racah coefficients.

So I will have to fix it. I will also add a function
for Racah-W. The current functions will survive as
gsl_sf_coupling_6j_INCORRECT_e() and
gsl_sf_coupling_6j_INCORRECT(),
so anybody using them doesn't have to think
hard about changing their code. But these will
be deprecated and undocumented.

Does that seem reasonable to everybody?.


-- 
Gerard Jungman <jungman@lanl.gov>
Los Alamos National Laboratory