Re: prodeulerrat

[John Cremona <john.cremona@gmail.com>]

On Wed, 8 Apr 2020 at 09:37, Bill Allombert
<Bill.Allombert@math.u-bordeaux.fr> wrote:
>
> On Wed, Apr 08, 2020 at 09:13:58AM +0100, John Cremona wrote:
> > I'm using the prodeulerrat() function to compute a value which will be
> > published, so I want to give proper credit.  Of course I will credit
> > pari/gp itself using the guidelines at
> > http://pari.math.u-bordeaux.fr/faq.html#quote (and by the way, I think
> > it would be a good idea to have a direct link to that very clearly
> > visible on the home page).
> >
> > I cannot see any specific credit for that function either in the users
> > manual or in the code, neither a person's name or a reference to any
> > literature.  I know that in Henri's Number Theory vol II there's a
> > method described on pages 208-210 (I may be working at home but I do
> > have a few essential books with me) and that refers to his
> > unpublished/unfinished notes hardylw.dvi, which I also have.   There
> > is also a 2000 paper by Moree with an appendix by Niklasch at
> > https://link.springer.com/article/10.1007/s002290050222  .
>
> Dear John,
>
> The function was written by Henri Cohen:
> CHANGES-2.10:
> HC   25- new GP functions prodeulerrat, sumeulerrat, sumnumrat, prodnumrat
>
> before being added to PARI, it was available as GP script by Henri:
> https://pari.math.u-bordeaux.fr/Scripts/cohen.gp

Thanks Bill -- I'll mention Henri explicitly.

John

>
> Cheers,
> Bill
>