On Mon, Apr 17, 2023 at 7:40 AM Tracy Hall wrote:
> (error present at least from SageMath 8.2 until SageMath 9.8)
>
in 10.0.beta9 one gets
sage: BG = BraidGroup(5)
sage: b = BG([3, 3, 4, 3, 3, 2, 1, 4, 3, 2]); b
s2^2*s3*s2^2*s1*s0*s3*s2*s1
sage: b.centralizer()
double free or corruption (out)
filed a bug in https://github.com/sagemath/sage/issues/35529
On Mon, Apr 17, 2023 at 9:42 AM Dima Pasechnik wrote:
>
>
> On Mon, Apr 17, 2023 at 7:40 AM Tracy Hall wrote:
>
>> (error present at least from SageMath 8.2 until SageMath 9.8)
>>
>
> in 10.0.beta9 one gets
>
> sage: BG =
Attempting to calculate the centralizer of a particular element of the
braid group on 5 strands causes a segmentation fault.
sage: BG = BraidGroup(5); BG
Braid group on 5 strands
sage: b = BG([3, 3, 4, 3, 3, 2, 1, 4, 3, 2]); b
s2^2*s3*s2^2*s1*s0*s3*s2*s1
sage: b.left_normal_form()
(1,
(error present at least from SageMath 8.2 until SageMath 9.8)
On Monday, April 17, 2023 at 12:36:41 AM UTC-6 Tracy Hall wrote:
> Attempting to calculate the centralizer of a particular element of the
> braid group on 5 strands causes a segmentation fault.
>
> sage: BG = BraidGroup(5); BG
>
I'm in the final stages of writing a book on infinite series for
calculus students. (I claim my way to do it is better than what you find
in standard textbooks.) I use Sage throughout, but only very simple
stuff. Most of my students use SageMath Cell and find that more than
adequate for what
Nice work!
For saving images of 3d-pictures: In the jupyter notebook with the
"threejs" viewer you can click on the "i" in the lower right corner. That
gets you a menu from which you can "sage as png". It will save a snapshot
of what you're viewing. You can also get camera and viewpoint from
The docker version of Sagemath poses some unexpected problems. It works but
it is a little cryptic for dummies who want use Sagemath and not in
installation of SageMath.
For instance, with the precedent way to install there was no probem for pdf
latex and even if with the console it was