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Re: [Help-gsl] Wolfram EllipticK vs gsl_sf_ellint_Kcomp

From: Ruben Van Boxem
Subject: Re: [Help-gsl] Wolfram EllipticK vs gsl_sf_ellint_Kcomp
Date: Tue, 27 Jul 2010 13:54:20 +0200

2010/7/27 Ruben Van Boxem <address@hidden>

> A small extra that introduces quite a big problem for me: the
> gsl_fs_ellint_Kcomp function takes the sqrt of the argument of Wolfram's
> EllipticK, meaning that while Wolfram's EllipticK can perfectly handle
> things like
> EllipticK(-.4)
> I see no (easy) way of doing such a thing in terms of GSL's elliptic
> functions.
> There may be a workaround for this, but I'm not too well versed in these
> things, the function popped up in an analytical solution to an integral I
> have to calculate.
> Thanks!
> Ruben

Sorry for the double post, but ALGLIB (GPL) can handle a negative
so for now, I've switched over to that library for the calculation of

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