Re: Elliptic Integrals?

[Eduardo Morras <emorrasg@yahoo.es>]

On Thu, 14 Jun 2018 11:28:22 +0200
Bill Allombert <Bill.Allombert@math.u-bordeaux.fr> wrote:

> On Tue, Jun 12, 2018 at 09:02:47PM +0200, Bill Allombert wrote:
> > On Tue, Jun 12, 2018 at 09:00:52PM +0200, Eduardo Morras wrote:
> > > 
> > > Hello, I'm trying to implement an algorithm that uses Elliptic
> > > Integrals. 
> > 
> > Hello Eduardo,
> > 
> > Which kind of elliptic integrals do you need ?
> > You might be able to use ellperiods.
> > 
> > I have this GP script which computes E and K.
> > (numE/numK are the slow version, agmE/agmK are the fast ones).
> > (Unfortunately I forgot where I found the formulae, which avoid
> > the derivation).
> 
> I found the reference for the formulae:
> 
> An Eloquent Formula for the Perimeter of an Ellipse
> Semjon Adlaj
> Notices of the AMS 2012
> <http://www.ams.org/notices/201208/rtx120801094p.pdf>

Thanks, I'll add it to bibliography.

> Cheers,
> Bill
> 


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Eduardo Morras <emorrasg@yahoo.es>