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Re: [Help-gsl] underflow in coulomb_bound.c

From: Brian Gough
Subject: Re: [Help-gsl] underflow in coulomb_bound.c
Date: Wed, 2 Mar 2005 18:33:53 +0000

Ivan Liu writes:
 > I think I found what causes this underflow message. It comes from 
 > gsl_sf_hydrogenicR(n,l,Z,r);
 > where l > 0 AND r = 0. Looking at the analytical form of the radial
 > Hydrogenic wavefunction R_nl, in such situations, R_nl is always zero.
 > Which of course gives underflow error.

Thanks, I've fixed that for the next release.

Brian Gough

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