Re: ellgenerators

[Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>]

On Wed, May 30, 2012 at 03:18:13PM +0400, Max Alekseyev wrote:
> John, thank you for clarification!
> 
> While we are on this page, I'd like also to report a strange error
> produced by ellgenerators:
> 
> ? ellgenerators(ellinit([-11972883, 21178268436096]))
>   ***   at top-level: ellgenerators(ellini
>   ***                 ^--------------------
>   *** ellgenerators: overflow in t_INT-->long assignment.
>   ***   Break loop: type 'break' to go back to GP
> 
> Looks like a bug in pari.

It is not really a bug:

The conductor of this curve is 64586707154338939012832614848
which indeed does not fit in a long, so this is way too large
to be in the database.

Cheers,
Bill.