Re: [sage-devel] Linear algebra reviewer(s) needed

2010-08-11 Thread Sergey Bochkanov
Hello, Rob. You wrote 11 августа 2010 г., 1:10:25: I have an undergraduate student who is funded this summer to develop some routines for Sage which create random matrices with nice properties for beginning students of linear algebra to practice with (or for faculty to put on exams, or to put

Re: [sage-devel] Help us test Cython?

2010-08-11 Thread Mitesh Patel
On 08/05/2010 11:12 PM, Robert Bradshaw wrote: On Thu, Aug 5, 2010 at 4:26 AM, Mitesh Patel qed...@gmail.com wrote: On 08/04/2010 03:10 AM, Robert Bradshaw wrote: On Sat, Jul 31, 2010 at 2:51 AM, Mitesh Patel qed...@gmail.com wrote: On 07/30/2010 01:54 AM, Craig Citro wrote: So we're

Re: [sage-devel] Sage4.5.2 on OpenSolaris-Haskell

2010-08-11 Thread David Kirkby
On 10 August 2010 10:35, Kutoma Ltd goen...@gmail.com wrote: Hello to everyone, Just downloaded the latest source tar file for SAGE ( 4.5.2) inclusive the README. Hope someone can advise a bit more about the follow statements written. x86_64 OpenSolaris (64-bit)   -- not officialy

Re: [sage-devel] Sage4.5.2 on OpenSolaris-Haskell

2010-08-11 Thread Dr. David Kirkby
On 08/11/10 11:37 AM, David Kirkby wrote: On 10 August 2010 10:35, Kutoma Ltdgoen...@gmail.com wrote: Hello to everyone, Just downloaded the latest source tar file for SAGE ( 4.5.2) inclusive the README. Hope someone can advise a bit more about the follow statements written. x86_64

Re: [sage-devel] Linear algebra reviewer(s) needed

2010-08-11 Thread David Joyner
Since I'm teaching a linear algebra class this semester, I'll bite. Applies fine to 4.5.2.rc0. Two extremely minor comments off the top of my head, but I'll make them on the ticket. On Tue, Aug 10, 2010 at 5:10 PM, Rob Beezer goo...@beezer.cotse.net wrote: Sage Devlopers, I have an

[sage-devel] Re: How does real_lazy work?

2010-08-11 Thread koffie
Hej Johan, It indeed seems to be at the core of a wider problem. The core of the problem seems that sometimes you can represent various objects in different ways. - So in the coding theory example you can represent a general linear code by a generator matrix. While you can represent a cyclic

[sage-devel] Re: How does real_lazy work?

2010-08-11 Thread Johan S. R. Nielsen
On Aug 11, 1:28 pm, koffie m.derickx.stud...@gmail.com wrote: Hej Johan, It indeed seems to be at the core of a wider problem. The core of the problem seems that sometimes you can represent various objects in different ways. - So in the coding theory example you can represent a general

[sage-devel] Re: A scalable framework for error-correcting code functionality in Sage

2010-08-11 Thread Johan S. R. Nielsen
Hi Ryan It seems that we are in agreement with most thing so far then :-) I just realised, however, a new problem with the whole encoder-decoder solution. Many such algorithms will want to take various options (like decoding bound, list size and multiplicity in the Guruswami-Sudan case), which

[sage-devel] Re: A scalable framework for error-correcting code functionality in Sage

2010-08-11 Thread Johan S. R. Nielsen
Hi Ryan It seems that we are in agreement with most thing so far then :-) I just realised, however, a new problem with the whole encoder-decoder solution. Many such algorithms will want to take various options (like decoding bound, list size and multiplicity in the Guruswami-Sudan case), which

[sage-devel] Re: A scalable framework for error-correcting code functionality in Sage

2010-08-11 Thread Johan S. R. Nielsen
Damn you, Refresh-button! Is there a way to delete such a duplicate post? -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at

[sage-devel] Sage builds on OpenSolaris 32-bit - most tests pass.

2010-08-11 Thread Dr. David Kirkby
For the first time today I build a 32-bit version of Sage on OpenSolaris. This was 4.5.3.alpha0 on my Sun Ultra 27. (I've tried 64-bit OpenSolaris before, with minimal success, though I can build it). A 64-bit build is just too unstable, but a 32-bit one is more usable. I added the following

[sage-devel] Re: Sage builds on OpenSolaris 32-bit - most tests pass.

2010-08-11 Thread John H Palmieri
On Aug 11, 8:24 am, Dr. David Kirkby david.kir...@onetel.net wrote: For the first time today I build a 32-bit version of Sage on OpenSolaris. This was 4.5.3.alpha0 on my Sun Ultra 27. (I've tried 64-bit OpenSolaris before, with minimal success, though I can build it). A 64-bit build is

Re: [sage-devel] Re: How does real_lazy work?

2010-08-11 Thread Tim Daly
Axiom solves this problem by separating the category information from the specific domain information. Thus you can have a categorical implementation that works for every domain in the category but you can supply a specific implementation for a given domain. So a dense matrix and a sparse

Re: [sage-devel] Re: Sage builds on OpenSolaris 32-bit - most tests pass.

2010-08-11 Thread Dr. David Kirkby
On 08/11/10 04:43 PM, John H Palmieri wrote: On Aug 11, 8:24 am, Dr. David Kirkbydavid.kir...@onetel.net wrote: For the first time today I build a 32-bit version of Sage on OpenSolaris. This was 4.5.3.alpha0 on my Sun Ultra 27. (I've tried 64-bit OpenSolaris before, with minimal success,

[sage-devel] Re: Proof of P!=NP

2010-08-11 Thread John Cremona
That's funny -- I just spent 5 days on holiday with my old friend Neil Immerman, who won the Godel Prize in 1995 for proving NL = co-NL,. I don't think that he mentioned the P=NP thing once. And then I get back online and find that sage-devel is buzzing with it! John On Aug 11, 3:10 am, Bill

[sage-devel] Re: Linear algebra reviewer(s) needed

2010-08-11 Thread Rob Beezer
Thanks for answering the call, David. Much appreciated. I suspect you'll find the routines useful this fall, and especially if we get around to building interacts as front-ends in the waning weeks. Rob On Aug 11, 4:07 am, David Joyner wdjoy...@gmail.com wrote: Since I'm teaching a linear

[sage-devel] Re: Linear algebra reviewer(s) needed

2010-08-11 Thread Rob Beezer
Hi Sergey, Thanks for the pointer to ALGLIB - I'd seen it discussed but hadn't investigated. We've pretty much been targeting QQ (maybe really ZZ) since the idea is to make examples/problems for an introductory course without a numerical component. Where we can drop-in an a general exact ring

Re: [sage-devel] Sage4.5.2 on OpenSolaris-Haskell

2010-08-11 Thread Mitesh Patel
On 08/10/2010 04:35 AM, Kutoma Ltd wrote: Thanks for any clarification.Also maybe a other question.Is someone working on any Interop between Sage and Haskell. I'm not aware of any ongoing projects to bridge Sage (or Python) and Haskell. I'd be happy to be corrected! I found this sage-devel

Re: [sage-devel] Sage4.5.2 on OpenSolaris-Haskell

2010-08-11 Thread William Stein
On Wed, Aug 11, 2010 at 2:50 PM, Mitesh Patel qed...@gmail.com wrote: On 08/10/2010 04:35 AM, Kutoma Ltd wrote: Thanks for any clarification.Also maybe a other question.Is someone working on any Interop between Sage and Haskell. I'm not aware of any ongoing projects to bridge Sage (or Python)

[sage-devel] New module complex_mpc using lib mpc #4446

2010-08-11 Thread Dr. David Kirkby
I've just got a message from the Sage nagbot, which made me bring this up. Does anyone have any comments on #4446? It's outside my maths knowledge, but I've taken some time to review bits of this. The ticket has been open 21 months, and a lot of people have put a lot of work into it. Dave

Re: [sage-devel] Help us test Cython?

2010-08-11 Thread Mitesh Patel
On 08/11/2010 03:25 AM, Mitesh Patel wrote: On 08/05/2010 11:12 PM, Robert Bradshaw wrote: On Thu, Aug 5, 2010 at 4:26 AM, Mitesh Patel qed...@gmail.com wrote: On 08/04/2010 03:10 AM, Robert Bradshaw wrote: So it looks like you're getting segfaults all over the place as well... Hmm... Could

Re: [sage-devel] Sage4.5.2 on OpenSolaris-Haskell

2010-08-11 Thread Mitesh Patel
On 08/11/2010 05:00 PM, William Stein wrote: On Wed, Aug 11, 2010 at 2:50 PM, Mitesh Patel qed...@gmail.com wrote: On 08/10/2010 04:35 AM, Kutoma Ltd wrote: Thanks for any clarification.Also maybe a other question.Is someone working on any Interop between Sage and Haskell. I'm not aware of

Re: [sage-devel] Help us test Cython?

2010-08-11 Thread Robert Bradshaw
On Wed, Aug 11, 2010 at 4:15 PM, Mitesh Patel qed...@gmail.com wrote: On 08/11/2010 03:25 AM, Mitesh Patel wrote: On 08/05/2010 11:12 PM, Robert Bradshaw wrote: On Thu, Aug 5, 2010 at 4:26 AM, Mitesh Patel qed...@gmail.com wrote: On 08/04/2010 03:10 AM, Robert Bradshaw wrote: So it looks like