Re: [sage-combinat-devel] import statement strange behaviour
On Mon, May 21, 2012 at 10:12:16PM +0200, Vincent Delecroix wrote: I really don't know how we can obtain the name used inside the function. I doubt one could even do it: in f(x) the parameter x is evaluated before passing it down to the function f. Potential workarounds: - Accept things as they are: that's just a corner case, it's easy for the user to fix the name after the import - Accept strings like cached_method as input as well as names for those cases - Find some heuristic for those cases (usually the lower case is preferred to the upper case?) Anyway, we should not waste too much time on that. Thanks all for your feedback! Cheers, Nicolas -- Nicolas M. Thiéry Isil nthi...@users.sf.net http://Nicolas.Thiery.name/ -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
Re: [sage-combinat-devel] bug in poset
Hi Anne, Did you make the changes in the source code? Then you can just do sage -br Thanks - I got that wrong (thought this is what upgrade would do)! and test your function. If you are happy with your changes and want to put them under mercurial supervision do hg qnew rank-dg.patch hg qrefresh hg qcommit Hmm. I can't get this to work: darij@travis-virtualbox:~/sage-5.0.rc1$ hg qnew rank-dg.patch abort: requirement 'dotencode' not supported! darij@travis-virtualbox:~/sage-5.0.rc1$ ./sage -hg qnew rank-dg.patch darij@travis-virtualbox:~/sage-5.0.rc1$ ./sage -hg qrefresh darij@travis-virtualbox:~/sage-5.0.rc1$ ./sage -hg qcommit abort: no queue repository Best regards, Darij -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
Re: [sage-combinat-devel] bug in poset
Hello Anne, Darij, On Tue, May 22, 2012 at 2:50 PM, Darij Grinberg darijgrinb...@gmail.comwrote: Hi Anne, For a finite poset perhaps the easiest would be to - start with a random element in the poset, assign rank 0 - look at all covers and cocovers and assign the rank according to the recurrence rank(x) = rank(y) + 1 if x covers y. - repeat with the new elements - if at any point an element is reached again and is assigned a different value from before, the poset is not graded; otherwise continue with new elements Add some constant to all ranks, so that the minimal rank is 0. You are right - I was trying to apply algebra too eagerly. This is basically a Dijkstra algorithm. Darij, do you think you can implement this? Here's a stupid implementation: http://mit.edu/~darij/www/rf.txt (to replace the rank_function implementation in sage/combinat/posets/hasse-diagram.py). Unfortunately I couldn't really test it in context since I have no idea how to make Sage recognize my changes to the sourcecode. (./sage -combinat upgrade notices the change but wants me to qrefresh, whatever this means; I haven't yet got around to learning hg.) I have checked that, when applied to a poset's Hasse diagram, it gives the right results. I created a ticket for this: http://trac.sagemath.org/sage_trac/ticket/12993 I'm going to post some comments for Darij there. Franco -- -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
Re: [sage-combinat-devel] bug in poset
Hi Darij, Did you make the changes in the source code? Then you can just do sage -br Thanks - I got that wrong (thought this is what upgrade would do)! and test your function. If you are happy with your changes and want to put them under mercurial supervision do hg qnew rank-dg.patch hg qrefresh hg qcommit Hmm. I can't get this to work: darij@travis-virtualbox:~/sage-5.0.rc1$ hg qnew rank-dg.patch abort: requirement 'dotencode' not supported! darij@travis-virtualbox:~/sage-5.0.rc1$ ./sage -hg qnew rank-dg.patch darij@travis-virtualbox:~/sage-5.0.rc1$ ./sage -hg qrefresh darij@travis-virtualbox:~/sage-5.0.rc1$ ./sage -hg qcommit abort: no queue repository Do you have the sage-combinat queue installed? You should do that (before changing the sage source code) via sage -combinat install There is a lot of information here http://wiki.sagemath.org/combinat/MercurialStepByStep Best, Anne -- You received this message because you are subscribed to the Google Groups sage-combinat-devel group. To post to this group, send email to sage-combinat-devel@googlegroups.com. To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en.
[sage-devel] Re: IPC with SAGE
Jorge Catumba Ruiz jorgere...@gmail.com writes: Hi, I was wondering if is possible to use IPC mechanisms with SAGE. That its important because I'm working on a project in my university. Sage is just running on Python, so you can use any IPC mechanisms that exist for Python (and I'm sure there are plenty). -Keshav Join us in #sagemath on irc.freenode.net ! -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: IPC with SAGE
AFAIK, pexpect provides IPC (Inter-Process Communication?) in Sage, and is used by a number of Sage packages. On Tuesday, 22 May 2012 08:50:59 UTC+2, Keshav Kini wrote: Jorge Catumba Ruiz jorgere...@gmail.com writes: Hi, I was wondering if is possible to use IPC mechanisms with SAGE. That its important because I'm working on a project in my university. Sage is just running on Python, so you can use any IPC mechanisms that exist for Python (and I'm sure there are plenty). -Keshav Join us in #sagemath on irc.freenode.net ! -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: IPC with SAGE
Dima Pasechnik dimp...@gmail.com writes: AFAIK, pexpect provides IPC (Inter-Process Communication?) in Sage, and is used by a number of Sage packages. While it is true that we use pexpect a lot, it is a particularly crude kind of IPC, and we only use it because it's a quick and dirty solution when you have a lot of control over one side of the connection - in our case, the Sage library - and little or no control over the other - in our case, various other mathematics software, which, though open source, we would prefer to avoid extensively patching to create an interface for IPC. Good IPC solutions generally involve some support from both sides, and I wouldn't really suggest pexpect to someone looking for general IPC mechanisms available in Sage, especially when there are doubtless many other, better ways to implement IPC that are easily available as Python modules... it would be like recommending a screen scraper to someone looking for a parser :) -Keshav Join us in #sagemath on irc.freenode.net ! -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
Re: [sage-devel] Re: weighted projective spaces
Op 22-05-2012 4:09, David Eklund schreef: Hi Volker, thanks for the advice! I think basing the implementation on the Cox ring is what I wanted anyway. If any number theory people are reading this I think it is worth thinking about making hyperelliptic curves subvarieties of weighted projective planes Definitely! That would make it possible to have a smooth projective model, with the correct points at infinity. (whether using the toric variety version I will work on or some other implementation of weighted projective spaces). /David Eklund On Sunday, May 20, 2012 7:03:04 PM UTC-6, Volker Braun wrote: Hi David, I think it would be best to construct them as toric varieties. This'll give you lots of functionality. For starters you should probably add a weighted projective space constructor to the toric_varieties library. There is already a toric_varieties.P(int), how about toric_varieties.WP(list of ints). If you want to provide specialized implementations for toric algorithms you can derive from the ToricVarieties class. Volker On Sunday, May 20, 2012 3:06:16 PM UTC-4, David Eklund wrote: Hi, I'm considering opening a ticket for the implementation of weighted projective spaces (in a class of its own). I think it could be quite useful in general but there are also algebraic varieties already in Sage for which weighted projective space is a natural habitat (like hyperelliptic curves). Does this sound like a good idea? Or is it superfluous? Are there tickets on this already? Any ideas of how it can be done? For example, does anyone know how it is done in Magma? Some technical remarks: it might be that the work is essentially already done in connection with toric varieties. I'm not sure exactly which functionalities I would like, but at least I want to construct them by simply giving the weights and also define subschemes by giving a bunch of weighted homogenous polynomials. Perhaps test smoothness of such subschemes etc. Maybe weighted projective spaces should be constructed as toric varieties. Or perhaps it is better to make an independent implementation of them. Any thoughts? thanks! /David Eklund -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
Re: [sage-devel] maxima error on calls like solve((A+p^B,p), is that the intended behavior?
Yes, I made a typo..Thanks for realizing what I meant.
However, I still think that a solution that has complex answers is OK. If
you are finding the symbolic solution isn't it better to find the general
solution and then deal with specific cases? I don't see what is wrong
with: p = (-A)^(1/B), even when B = 2 and A 0. This just means p =
(+/-)sqrt(-A). I just don't see any problem with having two possible
answers, even if they are complex. Is the problem that Maxima is trying to
solve the problem restricting it to RR?
I believe this is a case where Sage should try to catch this kind of Maxima
error and allow the user to get the general answer without having to drop
into Maxima.
So, I am arguing that Sage really should return: p = (-A)^(1/B) in cases
like this and that when Maxima asks a question, we need a better
explanation for the user of how to respond.
Jonathan
On Monday, May 21, 2012 3:21:19 PM UTC-5, Benjamin Jones wrote:
On Mon, May 21, 2012 at 3:10 PM, Jonathan wrote:
sage: var('x y z p q A B C')
sage: solve((A + p^B),p)
results in:
...
TypeError: ECL says: Maxima asks: Is B an integer?
Shouldn't it result in:
[p = (-A)^(1/p)]
Jonathan
I guess you mean: [p = (-A)^(1/B)]
Think about what happens when A = 2 and B = 2, or when A = 2 and B = 1/2.
--
Benjamin Jones
--
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 http://groups.google.com/group/sage-devel
URL: http://www.sagemath.org
[sage-devel] Re: how do I build sage-5.0 on virtualbox?
On May 21, 4:02 pm, Jeroen Demeyer jdeme...@cage.ugent.be wrote: On 2012-05-21 23:21, Adam Webb wrote: William (or anyone else having this problem), can you test the SPKG Jeroen has put up on #12970 ? Just unpack a sage source tarball, and replace mpir-2.4.0.p3.spkg withhttp://boxen.math.washington.edu/home/jdemeyer/spkg/mpir-2.4.0.p5.spkg. I'd test it myself but I don't have access to my VM for the next month or so. -Keshav Join us in #sagemath on irc.freenode.net ! I tried the spkg and everything built without problems. A 'make - ptestlong' also passed. This is using Ubuntu 12.04 (64 bit) on vmplayer in Windows 7. Please 1) Mention your CPU model 2) Send the MPIR build log My cpu is an Intel Core i7-2600. BTW I am using VMware Player 4.0.3. For what it is worth, cpuinfo shows the following flags: flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts nopl xtopology tsc_reliable nonstop_tsc aperfmperf pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 popcnt hypervisor lahf_lm ida arat epb xsaveopt pln pts dts Log file is at http://sage.math.washington.edu/home/awebb/mpir-2.4.0.p5.log. Cheers, Adam -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Geo buckets?
Hi! AFAIK, Singular uses the geo bucket data structure for internally representing polynomials during Gröbner basis computations. I did not succeed in finding it with search_src, but to be on the safe side, I ask here: Are geo buckets wrapped in Sage? Best regards, Simon -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
Re: [sage-devel] Re: weighted projective spaces
On Tuesday, May 22, 2012 4:16:08 AM UTC-4, Marco Streng wrote: Definitely! That would make it possible to have a smooth projective model, with the correct points at infinity. I don't understand that sentence - a smooth elliptic surface can already be embedded in P^2, right? Note that the toric variety code assumes that the base ring is a field at various places. So for number theory purposes it might be good to split things into ToricVariety_ring vs. ToricVariety_field. Its mostly my ignorance about toric varieties over general rings that prevented me from doing so... -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: IPC with SAGE
Maybe you should state at least a few details of your problem if you want meaningful advice. I like zeromq/pyzmq which is currently an optional package http://trac.sagemath.org/sage_trac/ticket/12843 Its very easy to implement various messaging patterns without getting bogged down in details of implementation. Also offers the same api for both IPC and networking... On Tuesday, May 22, 2012 12:05:16 AM UTC-4, Jorge Catumba Ruiz wrote: Hi, I was wondering if is possible to use IPC mechanisms with SAGE. That its important because I'm working on a project in my university. Thanks in advance. -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: Error in sage-5.0 + R: sage notebook does not show R parsing errors if length(input)=1024 characters
On May 21, 5:08 pm, Maciek Sykulski macie...@gmail.com wrote:
The old patch somewhat
works.http://trac.sagemath.org/sage_trac/attachment/ticket/11436/trac_11436...
It didn't apply automatically because the source in sage-5.0
looks a bit different now:
-
def _read_in_file_command(self, filename):
r
Return the R command (as a string) to read in a file named
filename into the R interpreter.
EXAMPLES::
sage: r._read_in_file_command('file.txt')
'file=file(file.txt,open=r)\nsource(file)'
return 'file=file(%s,open=r)\nsource(file)'%filename
-
Changing to return
'file=file(%s,open=r)\nsource(file,print.eval=TRUE)'%filename
doesn't do the trick, however reverting back to the old way, does:
return 'source(%s,print.eval=TRUE)'%filename
The error message in the notebook prints full %filename, however.
I bet this is debuggable without changing to the old syntax (which
change I assume was made for some good reason in one of the more
recent R fixes). Can you put some of your experiments on that
ticket? (Yes, this is a not-so-subtle ploy to get you to acquire a
Trac account and lure you into Sage development!)
Thanks for helping look at this,
- kcrisman
--
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 http://groups.google.com/group/sage-devel
URL: http://www.sagemath.org
[sage-devel] Re: maxima error on calls like solve((A+p^B,p), is that the intended behavior?
On May 22, 9:27 am, Jonathan gu...@uwosh.edu wrote:
Yes, I made a typo..Thanks for realizing what I meant.
However, I still think that a solution that has complex answers is OK. If
you are finding the symbolic solution isn't it better to find the general
solution and then deal with specific cases? I don't see what is wrong
with: p = (-A)^(1/B), even when B = 2 and A 0. This just means p =
(+/-)sqrt(-A). I just don't see any problem with having two possible
answers, even if they are complex. Is the problem that Maxima is trying to
solve the problem restricting it to RR?
I believe this is a case where Sage should try to catch this kind of Maxima
error and allow the user to get the general answer without having to drop
into Maxima.
So, I am arguing that Sage really should return: p = (-A)^(1/B) in cases
like this and that when Maxima asks a question, we need a better
explanation for the user of how to respond.
You mean like
http://hg.sagemath.org/sage-main/file/c239be1054e0/sage/symbolic/integration/integral.py#l327
sage: var('x, n')
330 (x, n)
331 sage: integral(x^n,x)
332 Traceback (most recent call last):
333 ...
334 ValueError: Computation failed since Maxima requested
additional
335 constraints; using the 'assume' command before integral
evaluation
336 *may* help (example of legal syntax is 'assume(n+10)',
see `assume?`
337 for more details)
338 Is n+1 zero or nonzero?
339 sage: assume(n 0)
340 sage: integral(x^n,x)
341 x^(n + 1)/(n + 1)
342 sage: forget()
I don't think we will be going for the answer you suggest, if only
because we'd have to write our own solver.
If you look at
sage: x.solve?
you'll see that we do incorporate the assumptions in (very naively and
basically) and we should also try to give the right syntax in this
case for the error. Assuming this is Jonathan G., can you open a
Trac ticket for this? Maybe search in the symbolic component first to
make sure this isn't already there, though I don't recall that it is.
- kcrisman
--
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 http://groups.google.com/group/sage-devel
URL: http://www.sagemath.org
Re: [sage-devel] maxima error on calls like solve((A+p^B,p), is that the intended behavior?
On Tue, May 22, 2012 at 8:27 AM, Jonathan gu...@uwosh.edu wrote: Yes, I made a typo..Thanks for realizing what I meant. However, I still think that a solution that has complex answers is OK. If you are finding the symbolic solution isn't it better to find the general solution and then deal with specific cases? I don't see what is wrong with: p = (-A)^(1/B), even when B = 2 and A 0. This just means p = (+/-)sqrt(-A). I just don't see any problem with having two possible answers, even if they are complex. Is the problem that Maxima is trying to solve the problem restricting it to RR? I believe this is a case where Sage should try to catch this kind of Maxima error and allow the user to get the general answer without having to drop into Maxima. So, I am arguing that Sage really should return: p = (-A)^(1/B) in cases like this and that when Maxima asks a question, we need a better explanation for the user of how to respond. Jonathan Well, I agree. I guess I was trying to say that a solution, if one exists, depends on the context (the underlying ring and also the values of A and B) so I don't think it's unreasonable for Maxima to ask for more information before giving an apparent solution which may or may not really exist. Mathematica seems to agree with you to: http://www.wolframalpha.com/input/?i=solve+A+%2B+p%5EB+%3D+0+for+p I definitely agree that Sage could be more helpful here as the middle man. I wonder if Maxima has any flags related to this, e.g. `return_purely_symbolic_solutions = true` would return `[ p = (-A)^(1/B) ]` and we could wrap this flag as an option to solve? -- Benjamin Jones -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] sage mirror path?
I've discovered that the sage mirror www.cecm.sfu.ca/sage isn't updating anymore. It's doing a cron job trying to rsync with cecmir...@boxen.math.washington.edu:/home/was/www/sage/ which fails. Has there been a change to the path required to sync to? (It hasn't able to find this directory since Fri Apr 27 04:30:01 PDT 2012) Cheers, Nils -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: C build problems on MacOS 10.7 Lion.
On 5/22/12 2:13 PM, Jason Ekstrand wrote: A professor in the department (not me) recently got a new macbook with MacOS 10.7 Lion on it. Due to some of the issues with installing XCode, we simply waited until Sage 5 to install Sage. However, upon installing, it fails to build Jason Grout's minimum rank library. I've attached a PDF of the error. It appears as if the version of the limits.h file bundled in with sage depends on the system's limits.h file which does not exist on a standard MacOS 10.7 install. How do you recommend dealing with this? Sorry I haven't got back to you on this. Is XCode installed on the 10.7 laptop? Also, I notice that the error messages seem to indicate that you're using the 10.6 binary; I wonder if that might be part of the problem? Did you compile 5.0 on the 10.7 machine, or did you download a binary? If someone wants to double-check things, just evaluate this in a cell or at the command line: URL='http://github.com/jasongrout/minimum_rank/raw/minimum_rank_1_1_0/' files=['Zq_c.pyx','Zq.py','zero_forcing_64.pyx','zero_forcing_wavefront.pyx','minrank.py'] for f in files: load(URL+f) Can anyone else evaluate this in Sage 5.0 on OSX 10.7? Also, Jason, can you try executing the above? I think the file you are using is version 1.0.0 of the library, but the above code loads version 1.1.0. I doubt it will make a difference in the limits.h problem, but who knows. Thanks, Jason -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: C build problems on MacOS 10.7 Lion.
On 5/22/12 2:53 PM, Jason Grout wrote: Can anyone else evaluate this in Sage 5.0 on OSX 10.7? Just as a data point, this works fine for me in Sage 5.0 on OSX 10.6.8: sage: URL='http://github.com/jasongrout/minimum_rank/raw/minimum_rank_1_1_0/' sage: files=['Zq_c.pyx','Zq.py','zero_forcing_64.pyx','zero_forcing_wavefront.pyx','minrank.py'] sage: for f in files: : load(URL+f) : Compiling /Users/grout/.sage//temp/tiny.local/77075//tmp_0.pyx... Compiling /Users/grout/.sage//temp/tiny.local/77075//tmp_2.pyx... Compiling /Users/grout/.sage//temp/tiny.local/77075//tmp_3.pyx... It would be great if someone else could try OSX 10.7... Thanks, Jason -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
Re: [sage-devel] Re: C build problems on MacOS 10.7 Lion.
On May 22, 2012, at 12:59 , Jason Grout wrote: On 5/22/12 2:53 PM, Jason Grout wrote: Can anyone else evaluate this in Sage 5.0 on OSX 10.7? Just as a data point, this works fine for me in Sage 5.0 on OSX 10.6.8: sage: URL='http://github.com/jasongrout/minimum_rank/raw/minimum_rank_1_1_0/' sage: files=['Zq_c.pyx','Zq.py','zero_forcing_64.pyx','zero_forcing_wavefront.pyx','minrank.py'] sage: for f in files: : load(URL+f) : Compiling /Users/grout/.sage//temp/tiny.local/77075//tmp_0.pyx... Compiling /Users/grout/.sage//temp/tiny.local/77075//tmp_2.pyx... Compiling /Users/grout/.sage//temp/tiny.local/77075//tmp_3.pyx... It would be great if someone else could try OSX 10.7... I get the same, using Mac OS X, 10.7.4, with Xcode 4.2.1 Justin -- Justin C. Walker, Curmudgeon-At-Large, Director Institute for the Enhancement of the Director's Income The path of least resistance: it's not just for electricity any more. -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
Re: [sage-devel] Re: C build problems on MacOS 10.7 Lion.
On May 22, 2012, at 13:08 , Justin C. Walker wrote: On May 22, 2012, at 12:59 , Jason Grout wrote: On 5/22/12 2:53 PM, Jason Grout wrote: Can anyone else evaluate this in Sage 5.0 on OSX 10.7? Just as a data point, this works fine for me in Sage 5.0 on OSX 10.6.8: sage: URL='http://github.com/jasongrout/minimum_rank/raw/minimum_rank_1_1_0/' sage: files=['Zq_c.pyx','Zq.py','zero_forcing_64.pyx','zero_forcing_wavefront.pyx','minrank.py'] sage: for f in files: : load(URL+f) : Compiling /Users/grout/.sage//temp/tiny.local/77075//tmp_0.pyx... Compiling /Users/grout/.sage//temp/tiny.local/77075//tmp_2.pyx... Compiling /Users/grout/.sage//temp/tiny.local/77075//tmp_3.pyx... It would be great if someone else could try OSX 10.7... I get the same, using Mac OS X, 10.7.4, with Xcode 4.2.1 ...and Sage 5.0, as well. Justin -- Justin C. Walker, Curmudgeon-At-Large Institute for the Enhancement of the Director's Income Experience is what you get when you don't get what you want. -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
Re: [sage-devel] Re: Sage 5.0 on ARM
Le lundi 21 mai, mmarco a écrit: I am a bit busy now, but if you pass me a tarball with the compiled sage directory in it i can try to create a chroot environment to be run in (rooted) android devices. Sorry it took so long -- apparently I've been slow to ask for an account :-P : http://boxen.math.washington.edu/home/jpuydt/sage-5.0-armv7l-Linux.tar.bz2 Hope that helps, Snark on #sagemath -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
Re: [sage-devel] Re: Sage 5.0 on ARM
Le mardi 22 mai, Julien Puydt a écrit: http://boxen.math.washington.edu/home/jpuydt/sage-5.0-armv7l-Linux.tar.bz2 I forgot : $ md5sum sage-5.0-armv7l-Linux.tar.bz2 ad53951e62c802071844f9bc6d5763d8 sage-5.0-armv7l-Linux.tar.bz2 if you don't get the same, perhaps the upload isn't finished yet (I should have waited before announcing :-P)... Snark on #sagemath -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
Re: [sage-devel] Re: C build problems on MacOS 10.7 Lion.
On Tue, May 22, 2012 at 2:53 PM, Jason Grout jason-s...@creativetrax.com wrote: Sorry I haven't got back to you on this. Is XCode installed on the 10.7 laptop? Also, I notice that the error messages seem to indicate that you're using the 10.6 binary; I wonder if that might be part of the problem? Did you compile 5.0 on the 10.7 machine, or did you download a binary? I'm not sitting at the machine right now, but I believe that XCode was installed. The command line tools are, however, NOT installed. But I believe the point of bundling GCC in with sage was to get rid of this problem, wasn't it? Also, Jason, can you try executing the above? I think the file you are using is version 1.0.0 of the library, but the above code loads version 1.1.0. I doubt it will make a difference in the limits.h problem, but who knows. That was the first thing I tried. It gives the exact same error. --Jason Ekstrand -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
Re: [sage-devel] Re: weighted projective spaces
Op 22-05-2012 15:26, Volker Braun schreef: On Tuesday, May 22, 2012 4:16:08 AM UTC-4, Marco Streng wrote: Definitely! That would make it possible to have a smooth projective model, with the correct points at infinity. I don't understand that sentence - a smooth elliptic surface can already be embedded in P^2, right? That sentence refers to the sentence by David Eklund right above it. So it has nothing to do with elliptic surfaces, but is about hyperelliptic curves. Hyperelliptic curves can be mapped birationally onto a curve in P^2, just by going via the standard model in A^2 of the form y^2 + h(x)*y = f(x). But the image is not smooth at infinity for any hyperelliptic curve (of genus =2). To make the image smooth, the standard solutions are to 1) glue two copies of A^2, 2) use a higherdimensional P^n, or 3) use a weighted projective 2-dimensional space. I think David was aiming at (3), and I was simply welcoming that. Note that the toric variety code assumes that the base ring is a field at various places. So for number theory purposes it might be good to split things into ToricVariety_ring vs. ToricVariety_field. Its mostly my ignorance about toric varieties over general rings that prevented me from doing so... -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: sage mirror path?
On Tuesday, 22 May 2012 21:00:57 UTC+2, Nils Bruin wrote: I've discovered that the sage mirror www.cecm.sfu.ca/sage isn't updating anymore. It's doing a cron job trying to rsync with cecmir...@boxen.math.washington.edu:/home/was/www/sage/ which fails. Has there been a change to the path required to sync to? (It hasn't able to find this directory since Fri Apr 27 04:30:01 PDT 2012) same applies to the Sage mirror at NTU (Singapore) By the way, I have a complaint: the mirror info says: Nanyang Technological University Last Updated by HaraldShttp://maps.google.com/maps/user?uid=215447762298243775980hl=en on May 15, 2011 http://jambu.spms.ntu.edu.sg/sage/index.html Nanyang Business Schoolhttp://maps.google.com/maps/place?cid=13311241923024749081 36 reviewshttp://maps.google.com/maps?ie=UTF8hl=enauthuser=0cid=13311241923024749081Pia=md_reviewsdtab=2 Nanyang Ave Singapore 639798 9847 5423 ntu-singapore.com/nbshttp://maps.google.com/local_url?q=http://ntu-singapore.com/nbsdq=ie=UTF8hl=enmsa=0msid=106570724428886886399.00046d7f23e304afe9f11ll=28.304381,12.65625spn=166.337894,360z=1output=embedoi=miwsa=Xct=miw_linkcd=1cad=homepage,cid:13311241923024749081ei=CAi8T4umE4an8gPN1ZCvAgs=ANYYN7nCDmjvaM9sSlLUy0DysYoHINYfwQ But it is not by NBS, it's by SPMS, School of Physical and Mathematical Sciences: http://www.spms.ntu.edu.sg/ Cheers, Nils -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
Re: [sage-devel] Re: C build problems on MacOS 10.7 Lion.
On Tuesday, May 22, 2012 2:26:52 PM UTC-7, Jason Ekstrand wrote: On Tue, May 22, 2012 at 2:53 PM, Jason Grout wrote: Sorry I haven't got back to you on this. Is XCode installed on the 10.7 laptop? Also, I notice that the error messages seem to indicate that you're using the 10.6 binary; I wonder if that might be part of the problem? Did you compile 5.0 on the 10.7 machine, or did you download a binary? I'm not sitting at the machine right now, but I believe that XCode was installed. The command line tools are, however, NOT installed. But I believe the point of bundling GCC in with sage was to get rid of this problem, wasn't it? Try installing the command line tools and see if that helps. Sage bundles GCC, but it doesn't necessarily include everything which is installed with the command line tools, so the machine might be missing some important component. -- John -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: sagenb.org
On 5/21/12 1:10 PM, Jason Grout wrote: On 5/18/12 5:46 PM, Jason Grout wrote: It does seem to me like the problems are in threads acquiring locks and possibly sending/receiving data. Maybe switching to the multithreaded flask server might help. For the record, all the other *.sagenb.org servers are switched over to 5.0 and seem like they are working fine. Just heads-up---as you may have seen, there was a problem with the other *.sagenb.org servers on upgrade, but it was totally unrelated to the thread locking problems we're seeing on sagenb.org, and has been resolved. I'm going to be profiling things a bit more today to try to get to the bottom of the sagenb.org thread contention problems. This might cause sagenb.org to be slow or down periodically. Another heads-up, and call for testing... William: I tried switching over to a multi-threaded flask (werkzeug) server. The load absolutely crushed that server, so that's a no-go for a heavy site like sagenb.org (which is exactly what they said in the documentation). Then I tried using uwsgi [1]. And *wow*. It's amazing how much faster things feel. All of this testing led to a big refactoring of the code to start up the notebook. The end result is that you can do: sage -sh -c 'easy_install uwsgi' and then in sage, do sage: notebook(server=uwsgi) and the notebook will launch with the uwsgi server. (you can also do server=twistd for the twisted server, and server=flask for the flask server) I've upgraded all *.sagenb.org servers *except* the main sagenb.org server to use uwsgi. Please let me know if you see any problems on any of the *.sagenb.org servers. If I don't hear of any problems by tomorrow or so, then I'll switch the main sagenb.org server over to uwsgi. My guess is that this won't completely solve our problems (there still are some pretty dumb and wasteful things the server is doing), but it should alleviate them quite a bit, hopefully. Thanks, Jason [1] http://projects.unbit.it/uwsgi/ -- this is one of the leading WSGI production servers. -- 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 http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
