Re: [sage-support] Ideal in a number field

2014-05-07 Thread ad14745
I think I have something about the generator thing : sage: N=25 sage: K = CyclotomicField(N) sage: ZK. = K.ring_of_integers() sage: ZK Maximal Order in Cyclotomic Field of order 25 and degree 20 sage: x 1 sage: y = ZK.gen(0) sage: y 1 sage: z = ZK.gen(1) sage: z zeta25 sage: z2 = ZK.gen(2) sage: z

Re: [sage-support] Ideal in a number field

2014-05-06 Thread ad14745
Tanks for your help. The "lambda: True" thing is really odd but seems to work... I will try to find how PARI and Sage (cyclotomic) ring of integers are implemented. On Tuesday, 6 May 2014 16:24:26 UTC+1, John Cremona wrote: > > On 6 May 2014 16:11, > wrote: > > I'm sorry but I use the notebook

Re: [sage-support] Ideal in a number field

2014-05-06 Thread ad14745
I'm sorry but I use the notebook / worksheet working on virtual box so copy-paste the file is long and painful. So actually I wrote it manually, that's why there is a mistake on "Fractional". My version is 5.13. I know I could have use K.ring_of_integers(), but I don't want that : I don't want

[sage-support] Ideal in a number field

2014-05-06 Thread ad14745
Hi. I have some issue with ideals in number fields. I wanted to test something about cyclotomic polynomials, so I had the following result : sage: N = 25 sage: K. = CyclotomicField(N) sage: n = K.degree() sage: ZK = ZZ[zeta] sage: ZK Order in Number Field in zeta0 with defining Polynomial x^2