Re: adding orders?

[Aurel Page <aurel.page@normalesup.org>]

Hi,

Why not a single argument, which can be a t_VEC for several elements? 
One might want an order generated by more than two elements. Or 'a' 
itself can be an order?
For the name, "nfordergenerated" would be accurate but a bit too long :-(

Cheers,
Aurel

On 17/06/18 22:31, Karim Belabas wrote:
> * Bill Allombert [2018-06-17 20:59]:
> > On Wed, Jun 13, 2018 at 02:41:46PM +0100, J E Cremona wrote:
> > > Is there a pari or gp function to add two orders in a number field?  Here
> > > of course I mean to return the smallest order containing both the summands,
> > > not just their sum as Z-modules, so the sum of Z[a] and Z[b] would Z[a,b].
> > I do not think this is readily available, though it is probably
> > done inside nfmaxord.
> > Do you have an algorithm for this task ?
> It's mostly available (internally). What would be a suitable name ?
> nforderadd ? (not too fond of that one...). Maybe, just nforder(nf, a, {b}) ?
> (cf idealhnf(nf, a, {b}).