[sage-devel] Re: Additive Groups

2008-08-29 Thread Nils Skoruppa
On 28 Aug., 15:20, John Cremona [EMAIL PROTECTED] wrote: Thanks for your comments, David.  I am having some success: The one thing I cannot get to work in the additive case is (for example) 2*g where g is a group element. I have tried all possible combinations of __lmul__, _lmul_,

[sage-devel] Re: Additive Groups

2008-08-29 Thread John Cremona
Thanks Nils, I'll look at how you did that. John 2008/8/29 Nils Skoruppa [EMAIL PROTECTED]: On 28 Aug., 15:20, John Cremona [EMAIL PROTECTED] wrote: Thanks for your comments, David. I am having some success: The one thing I cannot get to work in the additive case is (for example) 2*g

[sage-devel] Re: Additive Groups

2008-08-29 Thread mabshoff
On Aug 29, 2:24 am, Nils Skoruppa [EMAIL PROTECTED] wrote: SNIP Hi Nils, I cannot explain why this works, but if you want to have a look:http://hg.countnumber.de/fqm-devel/file/98bb736f0c07/cn_group/finite_... (and then  line  2132  class

[sage-devel] Re: Additive Groups

2008-08-29 Thread John Cremona
Nils, I hope you do -- I was certainly impressed by the presentation of this which you gave at the Bristol meeting last week. John 2008/8/29 mabshoff [EMAIL PROTECTED]: On Aug 29, 2:24 am, Nils Skoruppa [EMAIL PROTECTED] wrote: SNIP Hi Nils, I cannot explain why this works, but if you

[sage-devel] colours in trac

2008-08-29 Thread chris wuthrich
I wonder if a user can change the colours on the trac pages for patches. Being green-red colour-blind, I would prefer to swap, say, green for blue. Sorry if this question is not really a sage-devel question... Chris. --~--~-~--~~~---~--~~ To post to this group,

[sage-devel] Re: page not found for granville calculus

2008-08-29 Thread Martin Albrecht
On Friday 29 August 2008, Minh Nguyen wrote: Hi David, There appears to be a broken link at http://wiki.sagemath.org/Teaching_with_SAGE for Calculus 1. The broken link is [1] http://sage.math.washington.edu/home/wdj/teaching/granville-calculus/ However, at the URL

[sage-devel] Sage 3.1.2.alpha2 released

2008-08-29 Thread mabshoff
Hello folks, here is alpha2. We fixed another boatload of small and not so small issues. The performance regression with plotting is fixed, but there are still doctesting issues with the ghmm code. We will tackle that in alpha3 which hopefully will be done before Doc Day 3. Aside from that we

[sage-devel] Re: colours in trac

2008-08-29 Thread John Cremona
2008/8/29 chris wuthrich [EMAIL PROTECTED]: I wonder if a user can change the colours on the trac pages for patches. Being green-red colour-blind, I would prefer to swap, say, green for blue. +1 from another red-green challenged developer. John PS Chris, I have nearly finished my

[sage-devel] Re: colours in trac

2008-08-29 Thread mabshoff
On Aug 29, 3:58 am, John Cremona [EMAIL PROTECTED] wrote: 2008/8/29 chris wuthrich [EMAIL PROTECTED]: Hi, I wonder if a user can change the colours on the trac pages for patches. Being green-red colour-blind, I would prefer to swap, say, green for blue. +1 from another red-green

[sage-devel] Abelian groups are driving me crazy

2008-08-29 Thread John Cremona
The subject says it all really. Can anyone justify the following behaviour? sage: A=AbelianGroup([]) sage: A Trivial Abelian Group sage: A.list() [] sage: list(A) [] sage: A.gens() () sage: B=AbelianGroup([1]) sage: B Multiplicative Abelian Group isomorphic to C1 sage: B.list() [1] sage:

[sage-devel] Re: Abelian groups are driving me crazy

2008-08-29 Thread David Joyner
I agree AbelianGroups needs rewriting and has odd behavior in some cases. Incidently, here is what GAP does: gap A := AbelianGroup([1,2,3]); pc group of size 6 with 3 generators gap GeneratorsOfGroup(A); [ identity of ..., f1, f2 ] gap A := AbelianGroup([2,1,3]); pc group of size 6 with 3

[sage-devel] Re: Abelian groups are driving me crazy

2008-08-29 Thread John Cremona
2008/8/29 David Joyner [EMAIL PROTECTED]: I agree AbelianGroups needs rewriting and has odd behavior in some cases. Incidently, here is what GAP does: gap A := AbelianGroup([1,2,3]); pc group of size 6 with 3 generators gap GeneratorsOfGroup(A); [ identity of ..., f1, f2 ] gap A :=

[sage-devel] Re: Additive Groups

2008-08-29 Thread Robert Bradshaw
On Aug 29, 2008, at 2:24 AM, Nils Skoruppa wrote: On 28 Aug., 15:20, John Cremona [EMAIL PROTECTED] wrote: Thanks for your comments, David. I am having some success: The one thing I cannot get to work in the additive case is (for example) 2*g where g is a group element. I have tried all

[sage-devel] Re: Additive Groups

2008-08-29 Thread John Cremona
The trouble was that I wanted common code for both additive and multiplicative groups, which I can -- almost-- implement. Your way, we have one type of element derived from some MultiplicativeElement class and another from an Additive one, with a lot of duplicated code. But I'll look at your

[sage-devel] Re: Additive Groups

2008-08-29 Thread Robert Bradshaw
On Aug 29, 2008, at 5:01 AM, John Cremona wrote: The trouble was that I wanted common code for both additive and multiplicative groups, which I can -- almost-- implement. Your way, we have one type of element derived from some MultiplicativeElement class and another from an Additive one,

[sage-devel] Re: Sage 3.1.2.alpha2 released

2008-08-29 Thread John Cremona
Build reports for 3.1.2.alpha2 32-bit still running 64-bit on Linux version 2.6.18.8-0.3-default ([EMAIL PROTECTED]) (gcc version 4.1.2 20061115 (prerelease) (SUSE Linux)) #1 SMP Tue Apr 17 08:42:35 UTC 2007 Build ok, one doctest failed: sage -t devel/sage/sage/interfaces/octave.py Details:

[sage-devel] Re: python binding for nauty in optional spkg

2008-08-29 Thread Carl Witty
On Aug 28, 7:19 pm, Stephen Hartke [EMAIL PROTECTED] wrote: My understanding is that nauty is not intended to be built into a library, and hence this is why -fPIC is not used.  Is there any reason to not use -fPIC for a statically linked executable (as nauty is normally used)? Code compiled

[sage-devel] Re: Additive Groups

2008-08-29 Thread Nils Skoruppa
On 29 Aug., 11:55, mabshoff [EMAIL PROTECTED] wrote: Out of curiosity: Do you plan to submit the code to Sage eventually? Cheers, Michael Hi Michael, yes, I shall definitely do so within the next weeks. ---Nils --~--~-~--~~~---~--~~ To post to this group,

[sage-devel] Re: Sage 3.1.2.alpha2 released

2008-08-29 Thread mabshoff
On Aug 29, 7:09 am, John Cremona [EMAIL PROTECTED] wrote: Build reports for 3.1.2.alpha2 Hi John, 32-bit still running 64-bit on Linux version 2.6.18.8-0.3-default ([EMAIL PROTECTED]) (gcc version 4.1.2 20061115 (prerelease) (SUSE Linux)) #1 SMP Tue Apr 17 08:42:35 UTC 2007 Build ok,

[sage-devel] Re: Sage 3.1.2.alpha2 released

2008-08-29 Thread John Cremona
2008/8/29 mabshoff [EMAIL PROTECTED]: On Aug 29, 7:09 am, John Cremona [EMAIL PROTECTED] wrote: Build reports for 3.1.2.alpha2 Hi John, 32-bit still running Thanks for testing - let's hope 32 bit goes well, too. The following tests failed: sage -t

[sage-devel] Re: Sage 3.1.2.alpha2 released

2008-08-29 Thread mabshoff
On Aug 29, 10:16 am, John Cremona [EMAIL PROTECTED] wrote: 2008/8/29 mabshoff [EMAIL PROTECTED]: Hi John, Thanks for testing - let's hope 32 bit goes well, too. The following tests failed:         sage -t  devel/sage/sage/stats/hmm/chmm.pyx         sage -t  

[sage-devel] Re: Sage 3.1.2.alpha2 released

2008-08-29 Thread John Cremona
The patch as #3992 has a positive review now. John 2008/8/29 mabshoff [EMAIL PROTECTED]: On Aug 29, 10:16 am, John Cremona [EMAIL PROTECTED] wrote: 2008/8/29 mabshoff [EMAIL PROTECTED]: Hi John, Thanks for testing - let's hope 32 bit goes well, too. The following tests failed:

[sage-devel] real/complex roots and embeddings

2008-08-29 Thread John Cremona
If f is a real polynomial then f.roots(RR) gives the real roots, and f.roots(CC) gives the complex (including real) roots. Is there a fool-proof way of getting at the non-real roots? (You may assume that the coefficients of f are exact, perhaps they are rationals, so the questions is certainly

[sage-devel] Re: real/complex roots and embeddings

2008-08-29 Thread Nick Alexander
On 29-Aug-08, at 11:47 AM, John Cremona wrote: If f is a real polynomial then f.roots(RR) gives the real roots, and f.roots(CC) gives the complex (including real) roots. Is there a fool-proof way of getting at the non-real roots? (You may assume that the coefficients of f are exact,

[sage-devel] Re: real/complex roots and embeddings

2008-08-29 Thread Carl Witty
On Aug 29, 11:47 am, John Cremona [EMAIL PROTECTED] wrote: If f is a real polynomial then f.roots(RR) gives the real roots, and f.roots(CC) gives the complex (including real) roots.  Is there a fool-proof way of getting at the non-real roots?  (You may assume that the coefficients of f are

[sage-devel] Re: real/complex roots and embeddings

2008-08-29 Thread Carl Witty
On Aug 29, 12:02 pm, Nick Alexander [EMAIL PROTECTED] wrote: With a little work, Carl Witty's marvelous QQbar implementation could   help.  His code will do the doubling precision part for you, and you   can ask if any particular root is real -- but I found some bugs doing   this, shown

[sage-devel] Re: real/complex roots and embeddings

2008-08-29 Thread John Cremona
Thanks, Nick and Carl, that is very helpful! Now I am not sure whether to use QQbar just to determine which embeddings are (and are not) real, and then revert to RealField(precision) and ComplexField(Precision); or whether to try to do everything using QQbar. That sounds worth a try, despite

[sage-devel] Re: virtual box

2008-08-29 Thread bnewbold
I got pretty frustrated setting up vmware (workstation, have a license through school) under Ubuntu linux for the purpose of building a FreeBSD development image; lots of license issues, networking was a pain to configure, and eventually I gave up after spending too many weekend hours on it. I'd

[sage-devel] Re: real/complex roots and embeddings

2008-08-29 Thread Carl Witty
On Aug 29, 12:28 pm, John Cremona [EMAIL PROTECTED] wrote: Thanks, Nick and Carl, that is very helpful! Now I am not sure whether to use QQbar just to determine which embeddings are (and are not) real, and then revert to RealField(precision) and ComplexField(Precision);  or whether to try

[sage-devel] Sage on french TV

2008-08-29 Thread Philippe Saade
Hi dev team, Some of you know that wednesday and thursday i made an official presentation of Sage at the Maths' Teachers' Summer School (French Educational System). Notebook ended up on TV (well 3 seconds) i my respectable person too :-) If you want to have a look at it :

[sage-devel] Re: Sage on french TV

2008-08-29 Thread Jaap Spies
Philippe Saade wrote: Hi dev team, Some of you know that wednesday and thursday i made an official presentation of Sage at the Maths' Teachers' Summer School (French Educational System). Notebook ended up on TV (well 3 seconds) i my respectable person too :-) If you want to have a

[sage-devel] Re: virtual box

2008-08-29 Thread mabshoff
On Aug 29, 12:31 pm, bnewbold [EMAIL PROTECTED] wrote: Hi, I got pretty frustrated setting up vmware (workstation, have a license through school) under Ubuntu linux for the purpose of building a FreeBSD development image; lots of license issues, networking was a pain to configure, and

[sage-devel] Re: Sage on french TV

2008-08-29 Thread mabshoff
On Aug 29, 2:34 pm, Jaap Spies [EMAIL PROTECTED] wrote: Philippe Saade wrote: Hi dev team, Some of you know that wednesday and thursday i made an official presentation of Sage at the Maths' Teachers' Summer School (French Educational System). Notebook ended up on TV (well 3

[sage-devel] Re: Sage on french TV

2008-08-29 Thread Philippe Saade
On Sat, Aug 30, 2008 at 12:53 AM, mabshoff [EMAIL PROTECTED] wrote: On Aug 29, 2:34 pm, Jaap Spies [EMAIL PROTECTED] wrote: Philippe Saade wrote: Hi dev team, Some of you know that wednesday and thursday i made an official presentation of Sage at the Maths' Teachers' Summer School

[sage-devel] Re: Sage on french TV

2008-08-29 Thread David Joyner
On Fri, Aug 29, 2008 at 5:34 PM, Jaap Spies [EMAIL PROTECTED] wrote: Philippe Saade wrote: Hi dev team, Some of you know that wednesday and thursday i made an official presentation of Sage at the Maths' Teachers' Summer School (French Educational System). Notebook ended up on TV (well 3

[sage-devel] reopening Sage - Blender discussion

2008-08-29 Thread Philippe Saade
Hi, after many discussion with Sage potential users (this week, around me), i get convinced that it would be great to use Blender Python APi to rendre 3D scenes and animations. I have done some 3D animations few years ago with Blender (all of science facts, so mostly computed mesh) and even if

[sage-devel] Re: reopening Sage - Blender discussion

2008-08-29 Thread mabshoff
On Aug 29, 4:52 pm, Carl Witty [EMAIL PROTECTED] wrote: On Aug 29, 4:36 pm, Philippe Saade [EMAIL PROTECTED] wrote: Hi, Hi, after many discussion with Sage potential users (this week, around me), i get convinced that it would be great to use Blender Python APi to rendre 3D scenes

[sage-devel] About my presentation in France

2008-08-29 Thread Philippe Saade
Hi again, to sum up the two days i spent at the Maths' Teachers' Summer School, i must say that my presentation of Sage produced mainly two reactions (understand : AND, not XOR) : ** real interest in the Software because of it's potentialities. People were willing to use it. ** real need of

[sage-devel] Re: reopening Sage - Blender discussion

2008-08-29 Thread mhampton
I've been playing around with learning blender, with the idea of animating some 4-D projection/rotations of polytopes into 3D. But all I really want is a nice compressed animation/movie format, and it seems like there should be a lighter-weight way to do that. If I come up with anything worth

[sage-devel] Re: Sage on french TV

2008-08-29 Thread Philippe Saade
On Sat, Aug 30, 2008 at 1:31 AM, David Joyner [EMAIL PROTECTED] wrote: On Fri, Aug 29, 2008 at 5:34 PM, Jaap Spies [EMAIL PROTECTED] wrote: Philippe Saade wrote: Hi dev team, Some of you know that wednesday and thursday i made an official presentation of Sage at the Maths' Teachers'

[sage-devel] Re: reopening Sage - Blender discussion

2008-08-29 Thread root
I've been playing around with learning blender, with the idea of animating some 4-D projection/rotations of polytopes into 3D. But all I really want is a nice compressed animation/movie format, and it seems like there should be a lighter-weight way to do that. If I come up with anything worth

[sage-devel] Re: Sage on french TV

2008-08-29 Thread François Bissey
On Sat, 30 Aug 2008, Jaap Spies wrote: Philippe Saade wrote: Hi dev team, Some of you know that wednesday and thursday i made an official presentation of Sage at the Maths' Teachers' Summer School (French Educational System). Notebook ended up on TV (well 3 seconds) i my

[sage-devel] Re: Doc Day 3: Saturday August 30th, 2008

2008-08-29 Thread mabshoff
On Aug 28, 3:43 pm, mabshoff [EMAIL PROTECTED] wrote: Hello folks, September 1st is around the corner and we wanted to hit 60% coverage by the end of August. The current coverage in my alpha2 merge tree is   Overall weighted coverage score:  57.2%   Total number of functions:  20912

[sage-devel] Re: Doc Day 3: Saturday August 30th, 2008

2008-08-29 Thread Martin Albrecht
Hi there, I've got a couple of questions about Doc Day 3. Who is attending? There doesn't seem to be Wiki page for it. Also, the last bug day was underwhelming since as far as I can tell not that many people showed up. I suspect this is related to the short notice with which these days are

[sage-devel] Re: Doc Day 3: Saturday August 30th, 2008

2008-08-29 Thread mabshoff
On Aug 29, 7:42 pm, Martin Albrecht [EMAIL PROTECTED] wrote: Hi there, Hi Martin, I've got a couple of questions about Doc Day 3. Who is attending? There doesn't seem to be Wiki page for it. At least William, Mike Hansen, rlm and me will meet physically in Seattle. We will probably do a

[sage-devel] calling sage from mathematica

2008-08-29 Thread Amir
I talked briefly with William at Scipy2008 about being able to call sage from mathematica. He said it would be useful. I don't have much experience with python and none with sage and cython beside the nice tutorials at the conference. I wanted to get your input on how I should proceed. Most of my

[sage-devel] Re: Error installing pynac

2008-08-29 Thread mabshoff
On Aug 29, 7:57 pm, Jason Merrill [EMAIL PROTECTED] wrote: Hi Jason, I tried to install pynac on OS X 10.5, but it died.  Here's an excerpt of install.log pynac-0.1 Machine: Darwin jmerrill.local 9.4.0 Darwin Kernel Version 9.4.0: Mon Jun  9 19:30:53 PDT 2008;

[sage-devel] Re: Vote for new spkg: gp2c

2008-08-29 Thread mabshoff
Hi, I guess due to lack of interest we will make gp2c an optinal.spkg. I need to investigate how that works out, but since I want to upgrade pari anyway to the latest release I can integrate those changes needed for gp2c in its spkg-install. Cheers, Michael