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[Help-gsl] dawsons integral for imaginary arguments

From: Carsten Fortmann
Subject: [Help-gsl] dawsons integral for imaginary arguments
Date: Wed, 12 Apr 2006 10:32:56 +0200
User-agent: Mozilla Thunderbird 1.0.7 (X11/20051013)

I need the following expression

exp(x*x)erfc(x)  (1).

Due to the exp(x*x) (not exp(-x*x)!!!),
this expression returns a nan for large arguments. I found out, that (1) is in principal given by dawsons integral for purely imaginary argument. Does anyone know how to obtain this in gsl?


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