[sage-devel] Re: number field: exactness of result of abs

2018-10-24 Thread Volker Braun
On Wednesday, October 24, 2018 at 4:08:05 PM UTC+2, Daniel Krenn wrote: > > What is the reason, why this returns an inexact result and not something > in an exact ring like QQbar? Well abs() is real and positive, so QQbar might not be the first choice. Small orders are apparently special cased

Re: [sage-devel] number field: exactness of result of abs

2018-10-24 Thread Dima Pasechnik
On Wed, Oct 24, 2018 at 4:08 PM Daniel Krenn wrote: > we have > > sage: C. = CyclotomicField(60) > sage: abs(z) > 1.00 > sage: abs(z).parent() > Real Field with 53 bits of precision > > What is the reason, why this returns an inexact result and not something > in an exact ring like QQb

[sage-devel] number field: exactness of result of abs

2018-10-24 Thread Daniel Krenn
Dear all, we have sage: C. = CyclotomicField(60) sage: abs(z) 1.00 sage: abs(z).parent() Real Field with 53 bits of precision What is the reason, why this returns an inexact result and not something in an exact ring like QQbar? Best wishes Daniel -- You received this message beca

[sage-devel] Second update on Boolean-Cayley-graphs

2018-10-24 Thread Paul Leopardi
An update to my previous posts . So far my proje

[sage-devel] Re: NTL 11.3.1

2018-10-24 Thread Timo Kaufmann
Just pushed the nix update without any issues. Thank you for the heads up. For your information, the sage ntl package is still quite outdated: https://trac.sagemath.org/ticket/25532 Am Samstag, 20. Oktober 2018 17:45:04 UTC+2 schrieb Victor Shoup: > > I just release NTL 11.3.1, which fixes a bug

Re: [sage-devel] Re: SIXEL graphics for Sage?

2018-10-24 Thread Sébastien Labbé
On Wednesday, October 24, 2018 at 1:00:15 PM UTC+2, Sébastien Labbé wrote: > > This seems great! It seems something that should be incorporated in > ipython as an option so that Sage could just use it. > Actually, there exists this: https://github.com/ipython/ipython/pull/10610 -- You receive

Re: [sage-devel] Re: SIXEL graphics for Sage?

2018-10-24 Thread Sébastien Labbé
This seems great! It seems something that should be incorporated in ipython as an option so that Sage could just use it. Another link: https://github.com/koppa/matplotlib-sixel On Tuesday, October 23, 2018 at 8:58:27 PM UTC+2, Frédéric Chapoton wrote: > > I have created a ticket at https://trac.