[sage-devel] upcoming Sage Days

2014-01-09 Thread William Stein
Here are some upcoming Sage Days workshops, which I just added numbers for. The dates of some are tentative. If *you're* interested in going to one, let me know... Sage Days 57: Sage Combinatorics Days in Cernay-la-ville (sometime February-May, TBA). Sage Days 58: Bugs Days, San Diego (sometime

Re: [sage-devel] sage android anyone?

2014-01-09 Thread Volker Braun
Rasmi Elasmar changed the communication to support web sockets during GSoC 2013. In other words, this part is fixed. Ralph, I saw your activity on github. I was busy snorkeling this week, but will usually be available to help ;-) On Thursday, January 9, 2014 6:51:31 AM UTC-10, kcrisman wrote: >

[sage-devel] Re: User friendly output for divergant integrals/sum

2014-01-09 Thread Gregory Bard
This seems then to be a consensus opinion. Who knows how to code that, where to put the code, etc...? ---Greg On Tuesday, January 7, 2014 3:07:53 AM UTC-6, Simon King wrote: > > Hi, > > On 2014-01-07, maldun > wrote: > > One could also go further and raise a PlusInfinitiyException or a > > Min

Re: [sage-devel] sage android anyone?

2014-01-09 Thread kcrisman
On Thursday, January 9, 2014 10:56:58 AM UTC-5, William wrote: > > On Thu, Jan 9, 2014 at 7:51 AM, Ralf Stephan > > wrote: > > Hello, > > can you please tell me who maintains the Android app? If there is noone, > Thanks for volunteering to help make this better! I believe Volker Braun is th

[sage-devel] Re: [sage-nt] Re: Sage speed (=slow) on number field arithmetic

2014-01-09 Thread David Roe
On Thu, Jan 9, 2014 at 6:25 AM, John Cremona wrote: > OK, so I should have asked this student (not one of mine!) for an > example before emailing the lists. In his (toy) example he had a 6x6 > integer matrix M and did > > e = max(M.eigenvalues()) > N = M-e > v = N.right_kernel().basis()[0] > > e

[sage-devel] Re: [sage-nt] Re: Sage speed (=slow) on number field arithmetic

2014-01-09 Thread John Cremona
OK, so I should have asked this student (not one of mine!) for an example before emailing the lists. In his (toy) example he had a 6x6 integer matrix M and did e = max(M.eigenvalues()) N = M-e v = N.right_kernel().basis()[0] etc, which resulted in everything happening in Qbar, or in fact AA sinc

Re: [sage-devel] Re: Git reviewing help needed

2014-01-09 Thread David Roe
On a git ticket, click on the name of the branch (which should be green if it applies cleanly) and you'll get a diff of the changes that would occur if the ticket were merged into the current development branch. This view won't be affected by the kind of rebases that you mention. I will be in Bal

Re: [sage-devel] Re: Git reviewing help needed

2014-01-09 Thread Nathann Cohen
Hell !! > I just want to mention that I have been pretty reluctant to move to the new flow (and hence start reviewing tickets again) because I can't figure out how to interpret all this either. One huge advantage of the "patch" system is that it was very clear what the changes were that were

Re: [sage-devel] sage android anyone?

2014-01-09 Thread William Stein
On Thu, Jan 9, 2014 at 7:51 AM, Ralf Stephan wrote: > Hello, > can you please tell me who maintains the Android app? If there is noone, > what is the procedure to get github and release permissions? > > Please do not let it lie, the recently released app is broken in many ways > https://github.com

Re: [sage-devel] Re: Git reviewing help needed

2014-01-09 Thread William Stein
On Thu, Jan 9, 2014 at 7:50 AM, kcrisman wrote: >> >> I've positively reviewed 6f247f6e7f3f704d30f12af082d3e8a4c2120227, which >> was placed on top of 6.1.beta3. But the current branch is placed on top of >> 6.1.beta4, so I get all those tickets too in my diff! How do I do this? >> Should Nathann

[sage-devel] Re: Git reviewing help needed

2014-01-09 Thread kcrisman
> > > I've positively reviewed 6f247f6e7f3f704d30f12af082d3e8a4c2120227, which > was placed on top of 6.1.beta3. But the current branch is placed on top of > 6.1.beta4, so I get all those tickets too in my diff! How do I do this? > Should Nathann have done his "rebase" merges at all, or are tho

[sage-devel] GSoC13 sage-android

2014-01-09 Thread Ralf Stephan
Hello, I could not find this information, neither here nor on the GSoC page: who is/was the mentor of the sage-android project? Could s/he and/or the mentee post about what resulted? Did I miss a post somewhere else? Regards, -- You received this message because you are subscribed to the Googl

[sage-devel] sage android anyone?

2014-01-09 Thread Ralf Stephan
Hello, can you please tell me who maintains the Android app? If there is noone, what is the procedure to get github and release permissions? Please do not let it lie, the recently released app is broken in many ways https://github.com/sagemath/android/issues?state=open You may be of the opinion

[sage-devel] Re: [sage-nt] Re: Sage speed (=slow) on number field arithmetic

2014-01-09 Thread William Stein
On Thu, Jan 9, 2014 at 6:21 AM, John Cremona wrote: > Thanks, Bill. I don't think that the Warwick student is using Magma, > he was more "how can it possibly take so long to multiply a couple of > algebraic numbers!". His degrees are not large (at most 12) but > coefficients large. Are they rel

[sage-devel] Re: Sage speed (=slow) on number field arithmetic

2014-01-09 Thread John Cremona
Thanks, Bill. I don't think that the Warwick student is using Magma, he was more "how can it possibly take so long to multiply a couple of algebraic numbers!". His degrees are not large (at most 12) but coefficients large. I have asked for some more speicif sample computations and will take a oo

[sage-devel] Re: Sage speed (=slow) on number field arithmetic

2014-01-09 Thread Bill Hart
If they are comparing with Magma there are two reasons that I'm aware of: 1) Magma multiplies elements b and c of a number field with defining polynomial f by simply multiplying the polynomials representing b and c, but NOT reducing mod f. Only when you request an operation which requires a canoni

[sage-devel] Git reviewing help needed

2014-01-09 Thread Stefan
Hi all, In my quest to review some of Nathann's tickets, I keep hitting walls. This is part of the commit graph for ticket 15285: * commit 8468131a81898d5a3ccfb38d9f1a3d44df15fe10 |\ Merge: 2750b79 6f247f6 | | Author: Nathann Cohen | | Date: Tue Jan 7 09:34:46 2014 +0100 | | | | trac #

Re: [sage-devel] Sage speed (=slow) on number field arithmetic

2014-01-09 Thread Jeroen Demeyer
It would be good to have a concrete example of a particular computation which is perceived as slow. -- 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+uns

[sage-devel] Sage speed (=slow) on number field arithmetic

2014-01-09 Thread John Cremona
Two separate people today (one a colleague who works in geometric topology and group theory, the other a number theorist known to many on these lists) have said to me "Sage is still ridiculously slow on number field calculations" (quoting one of them). I also know that when William wanted to do so