Re: [sage-devel] Sage and GPFS

I used to build on GPFS some time ago. I still have an old GPFS system on which I could trial things again but I’d like to know a little bit more about the failure you are experiencing. I don’t remember having that kind of issues. François > On 13/04/2019, at 02:41, 'Juri' via sage-devel > w

Re: [sage-devel] Change complex number symbols

I realized that you may be just looking for the Python complex type. To get that you can do: sage: j = complex(i) sage: (3 + 4*j)^2 (-7+24j) Here are some other options. The first involves using number field arithmetic, so it may not be what you want (you can't use floating point values in the r

Re: [sage-devel] Change complex number symbols

why not just use j, and tell sage that j^2=-1? Depends on how much of Sage you expect to understand this. (the use of j is common in electrical engineering, for those who have not encountered this before...) RJF On Friday, April 12, 2019 at 1:39:51 AM UTC-7, David Roe wrote: > > Is this what you

[sage-devel] Sage and GPFS

We want to deploy Sage 8.7 on our HPC Cluster. Test builds in /tmp (tmpfs) work fine, while builds on our main GPFS fail. This seems to be a common problem with recent Sage versions (see here ) and may have something to do w

[sage-devel] Can we plan to get R 3.6.0 in Sage 8.8 ?

Accordiing to the R Core team release plan , R 3.6 should be released on Apr 26. Having been bitten by experience, I don't think we'll be able to learn a lot from the pre-release, so I expect that wrapping it for Sage will take a few days. If it can be wrapped

Re: [sage-devel] Change complex number symbols

Is this what you're looking for? sage: z = ComplexNumber(1,2) sage: z 1.00 + 2.00*I sage: print z.str(istr='j') 1. + 2.*j I don't think there's a global way to do this in Sage. I'm also not quite sure which kind of complex number you're wor

[sage-devel] Change complex number symbols

Hello everybody, Ín sage, how change complex number symbols: i^2=-1, z=a+bi Now I want j^2=-1, z=a+bj Thank you! -- 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 s

[sage-devel] Re: k-choosability and k-degeneracy of graphs on SageMath

At least we have a method to compute the cores of a graph. You can certainly use it to get the degeneracy. -- 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-d