Re: [sage-support] arbitrary precision arithmetic by default

2010-01-01 Thread Dan Drake
On Thu, 31 Dec 2009 at 10:13AM -0800, eliot brenner wrote: > Is there a way to make all floating point calculations within a > program or session occur to a fixed precision, say 500 digits? I know > how to issue commands like > > R500 = RealField(500) #set up 500 bit precision arithmetic > R500(

Re: [sage-support] SAGE and .NET interoperability.

2010-01-01 Thread Jaap Spies
Dr. David Kirkby wrote: > Mike Hansen wrote: >> On Fri, Jan 1, 2010 at 7:08 PM, Dr. David Kirkby >> wrote: >>> FWIW, a Google on Cywin brings up 4.8 million hits. On VirtualBox 4.2 >>> million >>> hits. Considering Cywin was released in 1995 and VirtualBox in 2007, it >>> would >>> suggest to m

[sage-support] Re: SAGE and .NET interoperability.

2010-01-01 Thread Jason Grout
Mike Hansen wrote: > On Fri, Jan 1, 2010 at 7:08 PM, Dr. David Kirkby > wrote: >> FWIW, a Google on Cywin brings up 4.8 million hits. On VirtualBox 4.2 million >> hits. Considering Cywin was released in 1995 and VirtualBox in 2007, it would >> suggest to me its a more popular tool today. > > Virt

Re: [sage-support] SAGE and .NET interoperability.

2010-01-01 Thread Dr. David Kirkby
Mike Hansen wrote: > On Fri, Jan 1, 2010 at 7:08 PM, Dr. David Kirkby > wrote: >> FWIW, a Google on Cywin brings up 4.8 million hits. On VirtualBox 4.2 million >> hits. Considering Cywin was released in 1995 and VirtualBox in 2007, it would >> suggest to me its a more popular tool today. > > Virt

Re: [sage-support] SAGE and .NET interoperability.

2010-01-01 Thread Jaap Spies
Dr. David Kirkby wrote: > William Stein wrote: > >>> But that is very different from a native Windows port, which was I thought >>> we >>> were talking about. >> >> We are talking about porting Sage to windows. I will leave it to the >> lawyers to define "native Windows port". > > Fair enough. >

Re: [sage-support] SAGE and .NET interoperability.

2010-01-01 Thread Mike Hansen
On Fri, Jan 1, 2010 at 7:08 PM, Dr. David Kirkby wrote: > FWIW, a Google on Cywin brings up 4.8 million hits. On VirtualBox 4.2 million > hits. Considering Cywin was released in 1995 and VirtualBox in 2007, it would > suggest to me its a more popular tool today. VirtualBox has all the drawbacks o

Re: [sage-support] SAGE and .NET interoperability.

2010-01-01 Thread Dr. David Kirkby
William Stein wrote: >> But that is very different from a native Windows port, which was I thought we >> were talking about. > > We are talking about porting Sage to windows. I will leave it to the > lawyers to define "native Windows port". Fair enough. > I strongly disagree with your asser

Re: [sage-support] SAGE and .NET interoperability.

2010-01-01 Thread William Stein
On Fri, Jan 1, 2010 at 4:38 PM, Dr. David Kirkby wrote: > William Stein wrote: > >> The Cygwin-based port will provide all functionality, not a limited >> subset.  As an estimate of difficulty: I'm confident Mike Hansen and I >> working fulltime for one month could complete it.  It would have been

Re: [sage-support] SAGE and .NET interoperability.

2010-01-01 Thread Dr. David Kirkby
William Stein wrote: > The Cygwin-based port will provide all functionality, not a limited > subset. As an estimate of difficulty: I'm confident Mike Hansen and I > working fulltime for one month could complete it. It would have been > finished already if good people were working on it. Just t

Re: [sage-support] SAGE and .NET interoperability.

2010-01-01 Thread William Stein
On Fri, Jan 1, 2010 at 2:46 PM, Dr. David Kirkby wrote: > William Stein wrote: >> On Fri, Jan 1, 2010 at 9:04 AM, Dr. David Kirkby >> wrote: >>> William Stein wrote: >>> Unfortunately, there is no native port of Sage to Microsoft Windows (I wish there were).  So you can't use it from .N

Re: [sage-support] SAGE and .NET interoperability.

2010-01-01 Thread Dr. David Kirkby
William Stein wrote: > On Fri, Jan 1, 2010 at 9:04 AM, Dr. David Kirkby > wrote: >> William Stein wrote: >> >>> Unfortunately, there is no native port of Sage to Microsoft Windows (I >>> wish there were). So you can't use it from .NET. >>> >>> -- William >> Is that situation changing? > > Not l

[sage-support] Re: "Recovering" permutations from poset elements

2010-01-01 Thread bump
> bruhat_p_order = lambda p,q : p.bruhat_lequal(q) > my_poset = Poset([perms, bruhat_p_order]) > > It seems that when I create the poset, the elements are no longer > permutations but "PosetElement"s, and I can't figure out how to > "recover" the elements as permutations. I can't even coerce them b

[sage-support] Re: region plot error

2010-01-01 Thread Jason Grout
Marshall Hampton wrote: > That definitely looks like a bug. It seems to be in the fast_float > command, called by setup_for_eval_on_grid. Hopefully someone more > familiar with fast_float can comment on what is going wrong. > First, there is a bug, presumably in setup_for_eval_on_grid, where th

Re: [sage-support] SAGE and .NET interoperability.

2010-01-01 Thread William Stein
On Fri, Jan 1, 2010 at 9:04 AM, Dr. David Kirkby wrote: > William Stein wrote: > >> Unfortunately, there is no native port of Sage to Microsoft Windows (I >> wish there were).  So you can't use it from .NET. >> >>  -- William > > Is that situation changing? Not lately. > I was under the impressi

Re: [sage-support] Testing errors for Sage 4.3 in openSUSE 11.0

2010-01-01 Thread William Stein
On Fri, Jan 1, 2010 at 5:17 AM, Samrat wrote: > Hi, > > On trying to compile Sage 4.3 on my openSUSE 11.0, the 'make test' > process reported the following errors: Also, give us vastly more details about your openSUSE install. Everything you can think of. I ask, because I built Sage 4.3 on openS

Re: [sage-support] SAGE and .NET interoperability.

2010-01-01 Thread Dr. David Kirkby
William Stein wrote: > Unfortunately, there is no native port of Sage to Microsoft Windows (I > wish there were). So you can't use it from .NET. > > -- William Is that situation changing? I was under the impression Microsoft were sponsoring a port, but I've not heard much about it. Is this pro

[sage-support] Re: region plot error

2010-01-01 Thread Marshall Hampton
That definitely looks like a bug. It seems to be in the fast_float command, called by setup_for_eval_on_grid. Hopefully someone more familiar with fast_float can comment on what is going wrong. -M.Hampton On Dec 31 2009, 5:30 pm, TianWei wrote: > When I try the following: > > sage: x,y = var(

Re: [sage-support] Testing errors for Sage 4.3 in openSUSE 11.0

2010-01-01 Thread Minh Nguyen
Hi Samrat, On Sat, Jan 2, 2010 at 12:17 AM, Samrat wrote: > Should i attach the test.log for details? Yes, that would be helpful, but should first upload the log to somewhere on the web and provide a link to the log. What you can also do is first run the tests in verbose mode with the "long"

[sage-support] Testing errors for Sage 4.3 in openSUSE 11.0

2010-01-01 Thread Samrat
Hi, On trying to compile Sage 4.3 on my openSUSE 11.0, the 'make test' process reported the following errors: -- The following tests failed: sage -t "devel/sage/doc/en/tutorial/tour_algebra.rst" sage -t "devel

Re: [sage-support] Fwd: sage q

2010-01-01 Thread David Joyner
I agree this is not a well-defined question but the questioner may want to look at http://www.gap-system.org/Manuals/doc/htm/tut/CHAP005.htm#SECT004 . I also suggest starting with smaller groups to begin with, if possible, to test out things. On Thu, Dec 31, 2009 at 9:12 PM, Alex Ghitza wrote: >