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expint_scaled (was Re: gsl-1.2)
- From: Gerard Jungman <jungman at lanl dot gov>
- To: gsl-discuss at sources dot redhat dot com
- Date: 06 Nov 2002 13:36:23 -0700
- Subject: expint_scaled (was Re: gsl-1.2)
Regarding message inserted in specfunc/TODO file:
> From: "Alexander Babansky" <babansky@mail.ru>
> To: "Brian Gough" <bjg@network-theory.co.uk>
>
> Hi Brian,
> May I suggest you to add another function to gsl-1.2 ?
> It's a modified Ei(x) function:
>
> Em(x)=exp(-x)*Ei(x);
Scaled versions of all exponential integrals now implemented
and in CVS. See gsl_sf_expint.h for descriptions. Tests work
for me, although test tolerances may need to be tweaked on
other platforms.
--
G. Jungman