Re: [sage-devel] Re: division in Zmod(6)

2018-05-03 Thread Johan Bosman
Of course, the quotient is well defined as an element of Z/3Z. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to

Re: [sage-devel] Re: division in Zmod(6)

2018-05-03 Thread 'Bill Hart' via sage-devel
Correction: the corresponding issue in the Nemo.jl project will be fixed in Nemo 0.8.4, not the next release 0.8.3, which apparently has already been tagged and is already in the Julia METADATA queue. We will of course tag 0.8.4 as soon as 0.8.3 clears the queue. The issue has been fixed in Nem

[sage-devel] Re: fflas_ffpack-2.2.2.p0 fails to compile on ubuntu 16.04 running on raspberry pi

2018-05-03 Thread Ronno Das
How do I figure out why this package is failing to build? I ran make -k and it took ~16 hours, but fflas_ffpack was the only error. On Monday, April 30, 2018 at 5:31:51 PM UTC-5, Ronno Das wrote: > > The 'make' ends with > > [fflas_ffpack-2.2.2.p0] >

Re: [sage-devel] Sage 8.1 fails to build on RHEL 7.5

2018-05-03 Thread François Bissey
I’d say this is the root cause of the problem but I am not sure what it all means gcc build/temp.linux-x86_64-2.7/scratch/check_sys_un.o -L/opt/modules/sagemath/8.1/lib -Wl,-R/opt/modules/sagemath/8.1/lib -o build/temp.linux-x86_64-2.7/scratch/check_sys_un Warning: No sys/un.h, IPC_PATH_

[sage-devel] Sage 8.1 fails to build on RHEL 7.5

2018-05-03 Thread Jack Brobst
Hi Sage devs, I'm trying to build Sage 8.1 on RHEL 7.5 and am getting some errors with pyzmq. I'm unsure which errors are causing the issue. I've tried using the system gcc, and gcc/7.3, but the errors were consistent. Please see attached. Thanks, Jack -- You received this message because

Re: [sage-devel] Re: division in Zmod(6)

2018-05-03 Thread 'Bill Hart' via sage-devel
In Julia and Nemo, the slash operator is floating point division. For example, 1/2 is 0.5 not a half. For division in a ring, you want divexact (there is also a separate operator, div, for Euclidean division). At the moment, the code in Nemo for this is actually incorrect, so it only gives you

Re: [sage-devel] strange Trac error

2018-05-03 Thread Erik Bray
It's a known issue. I have a fix but it will require taking the site down to do a database upgrade. You can fix it by force-pushing to the branch. It happens because git occasionally "garbage collects" commits that aren't reachable from a named branch or tag, and this includes the "merge preview"

Re: [sage-devel] Re: division in Zmod(6)

2018-05-03 Thread Samuel Lelièvre
Oh, I also had shared a Jupyter Notebook version, but forgot to post the link: https://cocalc.com/share/fc94de41-6af4-4ee1-a684-c33a9e56b2b0/nemo-zmod-division.ipynb?viewer=share ​ -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe fr