[sage-devel] Re: what can we do with a database of primitive roots?
If you just recorded the smallest primitive roots I'll bet the database would get a lot smaller:-) Do you need all the prim roots in the CrypTool tutorial for a particular purpose, eg discrete logs? I'd guess a database of the smallest prim roots mod p for all primes out to a million (for starters) would be interesting to some number-theorists. I did a google search and could not find much online. I did find Western, A. E. and Miller, J. C. P. Tables of Indices and Primitive Roots. Cambridge, England: Cambridge University Press, pp. xxxvii-xlii, 1968, although I couldn't find what it had, and this page http://www.ieeta.pt/~tos/p-roots.html has a link to some related data. Hope these are useful. On Fri, Jul 31, 2009 at 3:49 AM, Minh Nguyennguyenmi...@gmail.com wrote: Hi folks, I have been playing around with primitive roots lately in an effort to get more Sage code into the CrypTool tutorial. A result of this is that I have computed all the primitive roots modulo p, for each prime p between 1 and 100,000 inclusive. All Sage code and results are up at http://sage.math.washington.edu/home/mvngu/doc/primitive-roots/ In particular, the generated database of such primitive roots is http://sage.math.washington.edu/home/mvngu/doc/primitive-roots/primroots.dat.bz2 Even after compression, it's about 285 MB; it's 1.0 GB uncompressed. The whole database took about one day to generate on sage.math. At the moment, I'm not aware that Sage has a function to compute all primitive roots modulo a prime p so I created ticket #6467 http://trac.sagemath.org/sage_trac/ticket/6467 in order to get this implemented. I'm not at all well-versed in mathematics, nor number theory for that matter, so I'm not sure what anyone can do with the above database of primitive roots. Or is it just one of those long and pointless uses of Sage like Carl Witty's build [1] of Sage on a G1 cell phone? :-) [1] http://groups.google.com/group/sage-devel/browse_thread/thread/243dfd4ab25a2779/3cc58c39cc9cadff -- Regards Minh Van Nguyen --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage organizational structure, AWOL people (also about openmoney)
Hello everyone, 1) Protection from the harm of project leaders or some key people in the project being vanished could be organized, I would suggest, in the following way: The project sets up some place where the important information is being kept and maintained by the key people of the project. It could be the same system that is used for sharing the code. The project community sets up a limit for the time of absence of some important role. When the person that is responsible for that role in the project logins to do daily things he/she is automatically checks in to be present in the project. If, for some reason, the person hasn't checked in for the certain time, the hole information is passed to his deputies being elected by community or directly appointed by that person. That way the problem is reduced only to the responsibility and honesty to keep important information updated and also securing it. I guess it is not a big deal to implement such thing in github for example. 2) The motivation and devoted time to the project could well be stimulated by setting up some openmoney system* the points from which could be exchanged, let's say on some hardware or other stuff from sponsors that will except the money of the project. So, this way, everyone will have opportunity to benefit and earn some goods (not necessary money). *(see http://openmoney.ning.com/ for lots of info and http://www.complementarycurrency.org/ ) # Other links to openmoney software already in use: http://openmoney.editme.com/omsoft http://project.cyclos.org # A good resource for info: http://www.complementarycurrency.org/ # a wealth-acknowledgment information system: http://openmoney.info/sophia/index.html http://openmoney.org/ # wiki list of existing and developing social currency software projects: http://openmoney.ning.com/forum/topics/wiki-list-of-existing-and I do have lot of information and links about openmoney. Whoever is interested please write to me. Regards, Serge William Stein wrote: [...] Anyway, I would appreciate people sharing their thoughts about how to make the Sage project more organized with respect to key people vanishing -- either temporarily or permantly -- from the project. If you have relevant experience with other projects, or no of good articles about this sort of thing, etc., please share. Thanks! -- William -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: what can we do with a database of primitive roots?
Most older # theory textbooks (or newer editions thereof) have a list of smallest primitive roots of p for small p, as well as tables of indices for index calculus. I'm not sure whether that is quite as useful now, since any individual discrete log problem might be solved (slowly) by finding a primitive root and then using that... It couldn't hurt, of course. You should look for things related to the Artin conjecture if you really want to know who might be interested in such tables or calculations - I'm sure people researching this have done so. Gauss in particular conjectured that 1/p has repeating decimal of length p-1 for infinitely many p, which (if true) would prove the Artin conjecture with n=10 (i.e., 10 is a primitive root for infinitely many p). I think I have that right :) - kcrisman On Jul 31, 7:06 am, Minh Nguyen nguyenmi...@gmail.com wrote: Hi David, On Fri, Jul 31, 2009 at 7:31 PM, David Joynerwdjoy...@gmail.com wrote: If you just recorded the smallest primitive roots I'll bet the database would get a lot smaller:-) Do you need all the prim roots in the CrypTool tutorial for a particular purpose, eg discrete logs? That is part of a chapter on number theory for cryptography. The chapter discusses primitive roots so I introduced the Sage command primitive_root() and wrote some code to do simple calculations relating to primitive roots. I'd guess a database of the smallest prim roots mod p for all primes out to a million (for starters) would be interesting to some number-theorists. I did a google search and could not find much online. Cool. Then I have a pretext to make more use of the machine sage.math :-) I did find Western, A. E. and Miller, J. C. P. Tables of Indices and Primitive Roots. Cambridge, England: Cambridge University Press, pp. xxxvii-xlii, 1968, although I couldn't find what it had, and this page http://www.ieeta.pt/~tos/p-roots.html has a link to some related data. The author of that page also has done computations with the 3n + 1 conjecture. Earlier this year, I did some simple calculations relating to that conjecture. Perhaps I should revive that mini project. -- Regards Minh Van Nguyen --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: status of FreeBSD 64-bit support
The version of MPIR in Sage does build on t2 properly with
/usr/local/gcc-4.2.4-sun-linker/bin/gcc. In fact, it builds with all
versions of gcc on t2.
I can't say about the version in trunc, and cant easily check myself
at the minute.
2009/7/31 Jason Moxham ja...@njkfrudils.plus.com:
Building mpir svn trunk (which for the Sun's is the same as mpir-1.2.2)
./configure make -j make -j check
ld.so.1: t-modlinv: fatal: /usr/local/gcc-4.2.4-sun-linker/lib/libgcc_s.so.1:
wrong ELF class: ELFCLASS32
/bin/bash: line 1: 25188 Killed ${dir}$tst
FAIL: t-modlinv
I suggest you try ./configure ABI=32
You are mixing 32 and 64-bit objects. There is little chance of Sage
building in 64-bit mode on Solaris at the minute. So just use 32-bit
mode.
Dave
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[sage-devel] Re: status of FreeBSD 64-bit support
On Friday 31 July 2009 14:25:02 David Kirkby wrote:
The version of MPIR in Sage does build on t2 properly with
/usr/local/gcc-4.2.4-sun-linker/bin/gcc. In fact, it builds with all
versions of gcc on t2.
I can't say about the version in trunc, and cant easily check myself
at the minute.
I will check it out , although I dont expect it to be any different.
2009/7/31 Jason Moxham ja...@njkfrudils.plus.com:
Building mpir svn trunk (which for the Sun's is the same as mpir-1.2.2)
./configure make -j make -j check
ld.so.1: t-modlinv: fatal:
/usr/local/gcc-4.2.4-sun-linker/lib/libgcc_s.so.1: wrong ELF class:
ELFCLASS32
/bin/bash: line 1: 25188 Killed ${dir}$tst
FAIL: t-modlinv
I suggest you try ./configure ABI=32
You are mixing 32 and 64-bit objects. There is little chance of Sage
building in 64-bit mode on Solaris at the minute. So just use 32-bit
mode.
Dave
Thanks , so for mpir 64bit do we know where the error is ? in T2's compilers
configuration or in mpir's makefiles?
Jason
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[sage-devel] Re: Sage 4.1.1.rc0 released
2009/7/31 Minh Nguyen nguyenmi...@gmail.com: On Thu, Jul 30, 2009 at 1:14 PM, Minh Nguyennguyenmi...@gmail.com wrote: Hi folks, This is the first release candidate for Sage 4.1.1. Source and binary are at http://sage.math.washington.edu/home/mvngu/release/sage-4.1.1.rc0.tar http://sage.math.washington.edu/home/mvngu/release/sage-4.1.1.rc0-sage.math.washington.edu-x86_64-Linux.tar.gz and the upgrade path is http://sage.math.washington.edu/home/mvngu/release/sage-4.1.1.rc0/ Sage still dies when trying to build sage-4.1.1.rc0.spkg. Here's a relevant snippet: *** Begin install log *** /opt/SUNWspro/bin/CC -o src/so_ZZ_pylong.o -c -KPIC -fPIC -I/scratch/mvngu/sage-4.1.1.rc0/local/include -I/scratch/mvngu/sage-4.1.1.rc0/local/include/python2.6 -I/scratch/mvngu/sage-4.1.1.rc0/local/include/NTL -Iinclude src/ZZ_pylong.cpp CC: Warning: Option -fPIC passed to ld, if ld is invoked, ignored otherwise src/ZZ_pylong.cpp, line 47: Error: ZZ_set_pylong(NTL::ZZ, _object*) is expected to return a value. 1 Error(s) detected. scons: *** [src/so_ZZ_pylong.o] Error 1 *** TOUCHING ALL CYTHON (.pyx) FILES *** This is due to an issue with SCons, which we really need to resolve. I don't know if it SCons at fault, or sage-4.1.1.rc0.spkg, but either way, there is a mix of compilers and flags. Since no serious effort has been made by anyone (myself included) to build Sage with Suns compillers, we MUST use the GNU compilers for now. SCons has the path to the Sun compilers (/opt/SUNWspro/bin) hard-coded in it. I believe the contents of sage-4.1.1.rc0.spkg and inherring things from SCons, which includes the path of the compiler. So sage-4.1.1.rc0.spkg starts using the Sun compiler. Note it is also giving a mix of Sun and GNU flags to the Sun compiler. There is a hacked version of SCons that I made http://sage.math.washington.edu/home/kirkby/Solaris-fixes/scons-hack/scons-1.2.0.p0.spkg that basically just removes the path of the Sun compiler suite from SCons. Clearly this is a hack,not a patch, hence I am not suggesting it is reviewed. But if you install that, and rebuild SCons, then perhaps sage-4.1.1.rc0.spkg will build (there might be other issues with that package - I can't recall and due to some hardware issues here, I can't easily check). Dave --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Is there a list of environment variables SAGE uses?
2009/7/28 William Stein wst...@gmail.com: Perhaps a naming convention for them too. Should they all start SAGE_ for example? That would seem most sensible, despite I've already implemetnted on that does not start SAGE_. Obviously some part of you found that not sensible. Personally I prefer them to start with SAGE_. I agree. Though I don't see it as a high priority, I will rename those variables I've personally used to start with SAGE_. That does seem most sensible. Things like CC and CFLAGS are a different matter altogether. --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Sage 4.1 installation on ubuntu 8.04 failed
Dear sage-devel team, I have tried to install sage4.1 on ubuntu 8.04 by following the steps described in the readme file, i.e. I downloaded the source code from the Berlin server, unzipped it to the subdirectory sage/sage-4.1 in my home directory, and started make from there. This has ended up in the following error after about 1 hour (trailing part of install.log below). Platform: AMD64AthlonX2, 2xHDD (200GB each), WindowsXP on 1.HDD, Ubuntu8.04 on 2.HDD (Before that I also tried to use the pre-compiled sage4.1 version for Ubuntu9.04 on ubuntu8.04, which failed because of the wrong glibc version (needs 2.8, have 2.7)). Is there an easy way to install sage 4.1 on ubuntu 9.04? Thanks and regards, wom --- end of install.log: make[5]: Leaving directory `/home/wolfgang/sage/sage-4.1/spkg/build/ linbox-1.1.6.p0/src/linbox/ring' make[4]: Leaving directory `/home/wolfgang/sage/sage-4.1/spkg/build/ linbox-1.1.6.p0/src/linbox/ring' make[4]: Entering directory `/home/wolfgang/sage/sage-4.1/spkg/build/ linbox-1.1.6.p0/src/linbox' /bin/bash ../libtool --tag=CXX --mode=link g++ -g -fPIC -I/home/ wolfgang/sage/sage-4.1/local/include -I/home/wolfgang/sage/sage-4.1/ local/include/linbox -L/home/wolfgang/sage/sage-4.1/local/lib -I/ home/wolfgang/sage/sage-4.1/spkg/build/linbox-1.1.6.p0/src -I/home/ wolfgang/sage/sage-4.1/spkg/build/linbox-1.1.6.p0/src/linbox -I/home/ wolfgang/sage/sage-4.1/local/include -I/home/wolfgang/sage/sage-4.1/ local/include -D__LINBOX_HAVE_CBLAS -o liblinbox.la -rpath /home/ wolfgang/sage/sage-4.1/local/lib dummy.lo util/libutil.la randiter/ libranditer.la -lcblas -latlas -L/home/wolfgang/sage/sage-4.1/local/ lib -lgmpxx -lgmp -L/home/wolfgang/sage/sage-4.1/local/lib -lgivaro libtool: link: cannot find the library `/tmp/gcc-4.3.1/lib/../lib64/ libstdc++.la' or unhandled argument `/tmp/gcc-4.3.1/lib/../lib64/ libstdc++.la' make[4]: *** [liblinbox.la] Error 1 make[4]: Leaving directory `/home/wolfgang/sage/sage-4.1/spkg/build/ linbox-1.1.6.p0/src/linbox' make[3]: *** [install-recursive] Error 1 make[3]: Leaving directory `/home/wolfgang/sage/sage-4.1/spkg/build/ linbox-1.1.6.p0/src/linbox' make[2]: *** [install-recursive] Error 1 make[2]: Leaving directory `/home/wolfgang/sage/sage-4.1/spkg/build/ linbox-1.1.6.p0/src' Error installing linbox real0m36.571s user0m24.886s sys 0m8.529s sage: An error occurred while installing linbox-1.1.6.p0 Please email sage-devel http://groups.google.com/group/sage-devel explaining the problem and send the relevant part of of /home/wolfgang/sage/sage-4.1/install.log. Describe your computer, operating system, etc. If you want to try to fix the problem, yourself *don't* just cd to /home/wolfgang/sage/sage-4.1/spkg/build/linbox-1.1.6.p0 and type 'make'. Instead type /home/wolfgang/sage/sage-4.1/sage -sh in order to set all environment variables correctly, then cd to /home/wolfgang/sage/sage-4.1/spkg/build/linbox-1.1.6.p0 (When you are done debugging, you can type exit to leave the subshell.) make[1]: *** [installed/linbox-1.1.6.p0] Error 1 make[1]: Leaving directory `/home/wolfgang/sage/sage-4.1/spkg' real53m5.033s user42m31.299s sys 8m30.552s Error building Sage. wolfg...@wolfgang-desktop:~/sage/sage-4.1$ --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] problem with docstring formatting in pyx file
Hi, I wrote a patch for sampling from a general discrete probability distribution but I can't get the reference manual to format correctly. The pyx file is the problem. The patch is here: http://trac.sagemath.org/sage_trac/ticket/6662 The examples in the manual are formatted as normal paragraph text instead of code blocks. Any ideas? Cheers, -- Carlo Hamalainen http://carlo-hamalainen.net --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] multiplicative_order in finite fields
I was just looking at the code for multiplicative_order in finite_field_element.py, and noticed that it factors the group order, and find the cofactors corresponding to each prime power dividing the order (which is really the only algorithm that I know to do this). To avoid repeating this calculation for elements of finite fields it would be nice if the finite field could cache this information, so that it wouldn't have to be recalculated. The same remark should hold for finite abelian groups (since it's really the same algorithm). Victor --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: status of FreeBSD 64-bit support
Minh Nguyen wrote: Hi folks, As of Sage 4.1.1.alpha1, the compilation of Sage now dies when it comes to compiling MPIR. The full log is up at http://sage.math.washington.edu/home/mvngu/patch/install-freebsd64.log Here's a relevant snippet from my attempt: /usr/local/bin/bash ./libtool --mode=install /usr/bin/install -c 'libgmpxx.la\ ' '/usr/scratch/mvngu/sage-4.1.1.alpha1/local/lib/libgmpxx.la' libtool: install: warning: relinking `libgmpxx.la' (cd /usr/scratch/mvngu/sage-4.1.1.alpha1/spkg/build/mpir-1.2.p4/src; /usr/local\ /bin/bash ./libtool --tag=CXX --mode=relink g++ -O2 -m64 -march=k8 -mtune=k8 -\ o libgmpxx.la -rpath /usr/scratch/mvngu/sage-4.1.1.alpha1/local/lib -version-in\ fo 4:4:1 dummy.lo cxx/isfuns.lo cxx/ismpf.lo cxx/ismpq.lo cxx/ismpz.lo cxx/ismp\ znw.lo cxx/osdoprnti.lo cxx/osfuns.lo cxx/osmpf.lo cxx/osmpq.lo cxx/osmpz.lo li\ bgmp.la ) g++ -shared -nostdlib /usr/lib/crti.o /usr/lib/crtbeginS.o .libs/dummy.o cxx/.\ libs/isfuns.o cxx/.libs/ismpf.o cxx/.libs/ismpq.o cxx/.libs/ismpz.o cxx/.libs/i\ smpznw.o cxx/.libs/osdoprnti.o cxx/.libs/osfuns.o cxx/.libs/osmpf.o cxx/.libs/o\ smpq.o cxx/.libs/osmpz.o -Wl,--rpath -Wl,/usr/scratch/mvngu/sage-4.1.1.alpha1/\ local/lib -L/usr/scratch/mvngu/sage-4.1.1.alpha1/local/lib -lgmp -L/usr/lib -ls\ tdc++ -lm -lc -lgcc_s /usr/lib/crtendS.o /usr/lib/crtn.o -m64 -march=k8 -mtune\ =k8 -Wl,-soname -Wl,libgmpxx.so.4 -o .libs/libgmpxx.so.4 /usr/bin/ld: cannot find -lgmp libtool: install: error: relink `libgmpxx.la' with the above command before ins\ talling it *** Error code 1 Not sure if I said this before, but I've seen this error on a laptop running Solaris x86 - the build is around 98 or so. It is NOT OpenSolaris, but its open-source. (I lose track of the names Sun come up for with Solaris, SXCE, SXDE, Solaris, OpenSolaris). Anyway, I was running Solaris Express Community Edition (build 98 or so) and I got the same error, about being unable to link to gmp. --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: status of Solaris support in 4.1.1 release cycle
Minh Nguyen wrote: Hi folks, So far in the 4.1.1 release cycle, David Kirkby has added Solaris (on the machine t2) build support for about 7 packages. That is very impressive work for an individual porter. Out of curiosity, I compiled Sage 4.1.1.alpha1 from source on t2. Now the compilation dies at the point where the SPKG sage-4.1.1.alpha1 was being compiled. I may be wrong here, but the context is that that SPKG tries to link to the NTL library and the specific error is in building c_lib. But don't take my words for it. The full log is up at http://sage.math.washington.edu/home/mvngu/patch/install-solaris.log.bz2 and here's a relevant snippet: CC: Warning: Option -fPIC passed to ld, if ld is invoked, ignored otherwise src/ZZ_pylong.cpp, line 47: Error: ZZ_set_pylong(NTL::ZZ, _object*) is expected to return a value. 1 Error(s) detected. scons: *** [src/so_ZZ_pylong.o] Error 1 *** TOUCHING ALL CYTHON (.pyx) FILES *** /opt/SUNWspro/bin/CC -o src/so_ZZ_pylong.o -c -KPIC -fPIC -I/scratch/mvngu/sage-4.1.1.alpha1/local/include -I/scratch/mvngu/sage-4.1.1.alpha1/local/include/python2.6 -I/scratch/mvngu/sage-4.1.1.alpha1/local/include/NTL -Iinclude src/ZZ_pylong.cpp CC: Warning: Option -fPIC passed to ld, if ld is invoked, ignored otherwise src/ZZ_pylong.cpp, line 47: Error: ZZ_set_pylong(NTL::ZZ, _object*) is expected to return a value. 1 Error(s) detected. scons: *** [src/so_ZZ_pylong.o] Error 1 This is the SCons issue - the Sun compiler is being used when we don't want it to be used. What causes this I don't know. It may be a bug in SCons, it may be in the package being built. Sorry if I have answered before. I attempted to, but don't recall if I sent it, and having swapped computers, I don't have an accurate record of what I have and have not sent. --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: status of FreeBSD 64-bit support
Jason Moxham wrote:
Building mpir svn trunk (which for the Sun's is the same as mpir-1.2.2)
./configure make -j make -j check
ld.so.1: t-modlinv: fatal: /usr/local/gcc-4.2.4-sun-linker/lib/libgcc_s.so.1:
wrong ELF class: ELFCLASS32
/bin/bash: line 1: 25188 Killed ${dir}$tst
FAIL: t-modlinv
ld.so.1: t-popc: fatal: /usr/local/gcc-4.2.4-sun-linker/lib/libgcc_s.so.1:
wrong ELF class: ELFCLASS32
/bin/bash: line 1: 25208 Killed ${dir}$tst
FAIL: t-popc
ld.so.1: t-parity: fatal: /usr/local/gcc-4.2.4-sun-linker/lib/libgcc_s.so.1:
wrong ELF class: ELFCLASS32
/bin/bash: line 1: 25228 Killed ${dir}$tst
FAIL: t-parity
ld.so.1: t-sub: fatal: /usr/local/gcc-4.2.4-sun-linker/lib/libgcc_s.so.1:
wrong ELF class: ELFCLASS32
/bin/bash: line 1: 25248 Killed ${dir}$tst
FAIL: t-sub
=
9 of 9 tests failed
Please report to http://groups.google.co.uk/group/mpir-devel/
=
running source doesn't help but setting
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/sparc-solaris-toolchain/lib/sparcv9
LD=/usr/ccs/bin/sparcv9/ld
does the job.
What should pass , and what should not ?
Thanks
Jason
This is a result of mixing 32 and 64 bit binaries.
try
./configure ABI=32
which is what is used in Sage. The gmp that is used to build all the
recent GCC installations on 't2' is based on a 32-bit ABI.
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[sage-devel] Re: multiplicative_order in finite fields
Hi Victor, On Jul 31, 3:59 pm, VictorMiller victorsmil...@gmail.com wrote: I was just looking at the code for multiplicative_order in finite_field_element.py, and noticed that it factors the group order, and find the cofactors corresponding to each prime power dividing the order (which is really the only algorithm that I know to do this). To avoid repeating this calculation for elements of finite fields it would be nice if the finite field could cache this information, so that it wouldn't have to be recalculated. The same remark should hold for finite abelian groups (since it's really the same algorithm). Do you know the cached_method decorator? In order to cache the field (or group) order, you just need to import the decorator by from sage.misc.cachefunc import cached_method and then, right in front of the method definition, put @cached_method: @cached_method def multiplicative_order(FiniteField_givaroElement self): ... Cheers, Simon --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: status of FreeBSD 64-bit support
- Original Message - From: Dr. David Kirkby david.kir...@onetel.net To: sage-devel@googlegroups.com Sent: Friday, July 31, 2009 4:02 PM Subject: [sage-devel] Re: status of FreeBSD 64-bit support Minh Nguyen wrote: Hi folks, As of Sage 4.1.1.alpha1, the compilation of Sage now dies when it comes to compiling MPIR. The full log is up at http://sage.math.washington.edu/home/mvngu/patch/install-freebsd64.log Here's a relevant snippet from my attempt: /usr/local/bin/bash ./libtool --mode=install /usr/bin/install -c 'libgmpxx.la\ ' '/usr/scratch/mvngu/sage-4.1.1.alpha1/local/lib/libgmpxx.la' libtool: install: warning: relinking `libgmpxx.la' (cd /usr/scratch/mvngu/sage-4.1.1.alpha1/spkg/build/mpir-1.2.p4/src; /usr/local\ /bin/bash ./libtool --tag=CXX --mode=relink g++ -O2 -m64 -march=k8 -mtune=k8 -\ o libgmpxx.la -rpath /usr/scratch/mvngu/sage-4.1.1.alpha1/local/lib -version-in\ fo 4:4:1 dummy.lo cxx/isfuns.lo cxx/ismpf.lo cxx/ismpq.lo cxx/ismpz.lo cxx/ismp\ znw.lo cxx/osdoprnti.lo cxx/osfuns.lo cxx/osmpf.lo cxx/osmpq.lo cxx/osmpz.lo li\ bgmp.la ) g++ -shared -nostdlib /usr/lib/crti.o /usr/lib/crtbeginS.o .libs/dummy.o cxx/.\ libs/isfuns.o cxx/.libs/ismpf.o cxx/.libs/ismpq.o cxx/.libs/ismpz.o cxx/.libs/i\ smpznw.o cxx/.libs/osdoprnti.o cxx/.libs/osfuns.o cxx/.libs/osmpf.o cxx/.libs/o\ smpq.o cxx/.libs/osmpz.o -Wl,--rpath -Wl,/usr/scratch/mvngu/sage-4.1.1.alpha1/\ local/lib -L/usr/scratch/mvngu/sage-4.1.1.alpha1/local/lib -lgmp -L/usr/lib -ls\ tdc++ -lm -lc -lgcc_s /usr/lib/crtendS.o /usr/lib/crtn.o -m64 -march=k8 -mtune\ =k8 -Wl,-soname -Wl,libgmpxx.so.4 -o .libs/libgmpxx.so.4 /usr/bin/ld: cannot find -lgmp libtool: install: error: relink `libgmpxx.la' with the above command before ins\ talling it *** Error code 1 Not sure if I said this before, but I've seen this error on a laptop running Solaris x86 - the build is around 98 or so. It is NOT OpenSolaris, but its open-source. (I lose track of the names Sun come up for with Solaris, SXCE, SXDE, Solaris, OpenSolaris). Anyway, I was running Solaris Express Community Edition (build 98 or so) and I got the same error, about being unable to link to gmp. I pretty sure this is the same as the freebsd64 error , what is surprising is that it worked on linux at all . Jason --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] possible bug in permutation/quotient group?
Hi all, I was just playing around with permutations, when something
puzzled me:
sage: G = SymmetricGroup(4)
sage: H = G.normal_subgroups()[1]
sage: H
Permutation Group with generators [(1,3)(2,4), (1,4)(2,3)]
sage: G.quotient_group(H)
Permutation Group with generators [(1,2)(3,6)(4,5), (1,3,5)(2,4,6)
Where do the 5 and 6 suddenly come from? In my understanding the
elements of the quotient group G/H are classes of elements of G, which
operates on {1, 2, 3, 4}.
Also, there is a method of G called quotient, which raises and
NotImplementedError, which is a little confusing, given an
implementation of the quotient group is actually available.
Running Sage 4.1 on Arch Linux 64 bit.
--
Robert Schwarz m...@rschwarz.net
Get my public key at http://rschwarz.net/key.asc
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[sage-devel] Re: possible bug in permutation/quotient group?
Maybe I don't understand your question. It seems you are claiming that
if G is a permutation group and H is a normal subgroup then
the quotient G/H embeds into G. Are you sure that is true?
On Fri, Jul 31, 2009 at 11:36 AM, Robert Schwarzm...@rschwarz.net wrote:
Hi all, I was just playing around with permutations, when something
puzzled me:
sage: G = SymmetricGroup(4)
sage: H = G.normal_subgroups()[1]
sage: H
Permutation Group with generators [(1,3)(2,4), (1,4)(2,3)]
sage: G.quotient_group(H)
Permutation Group with generators [(1,2)(3,6)(4,5), (1,3,5)(2,4,6)
Where do the 5 and 6 suddenly come from? In my understanding the
elements of the quotient group G/H are classes of elements of G, which
operates on {1, 2, 3, 4}.
Also, there is a method of G called quotient, which raises and
NotImplementedError, which is a little confusing, given an
implementation of the quotient group is actually available.
Running Sage 4.1 on Arch Linux 64 bit.
--
Robert Schwarz m...@rschwarz.net
Get my public key at http://rschwarz.net/key.asc
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[sage-devel] Re: problem with docstring formatting in pyx file
Carlo Hamalainen wrote: The pyx file is the problem. The patch is here: http://trac.sagemath.org/sage_trac/ticket/6662 The examples in the manual are formatted as normal paragraph text instead of code blocks. Any ideas? Try inserting a blank line after EXAMPLES::: def reset_distribution(self): This method resets the distribution. EXAMPLES:: sage: T = GeneralDiscreteDistribution([0.1, 0.3, 0.6]) sage: v = [T.get_random_element() for _ in range(10)] sage: T.reset_distribution() sage: w = [T.get_random_element() for _ in range(10)] if self.r!=NULL: [...] --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: possible bug in permutation/quotient group?
Hi David,
On Jul 31, 4:47 pm, David Joyner wdjoy...@gmail.com wrote:
Maybe I don't understand your question. It seems you are claiming that
if G is a permutation group and H is a normal subgroup then
the quotient G/H embeds into G. Are you sure that is true?
...
Where do the 5 and 6 suddenly come from? In my understanding the
elements of the quotient group G/H are classes of elements of G, which
operates on {1, 2, 3, 4}.
I understand the question like this: The elements of G/H are *sets* of
elements of G (namely cosets). One obvious way to represent a coset is
by picking one of its elements -- hence, an element of G. Then, it is
indeed surprising that higher numbers occur.
Aparently G.quotient_group(H) returns a permutation group that is
isomorphic to G/H. And then, it is of course not surprising that it
does not simply act on {1,2,3,4}.
But the following question arises:
Start with
sage: G = SymmetricGroup(4)
sage: H = G.normal_subgroups()[1]
sage: H
Permutation Group with generators [(1,3)(2,4), (1,4)(2,3)]
sage: X= G.quotient_group(H)
Given an element g of G, how can one find the element of X that
corresponds to the coset of g wrt. H ?
sage: X(g)
would in general not work!
How can one construct the map from G to X that corresponds to taking
the quotient by H ?
Cheers,
Simon
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[sage-devel] Re: possible bug in permutation/quotient group?
On Jul 31, 11:47 am, David Joyner wdjoy...@gmail.com wrote:
Maybe I don't understand your question. It seems you are claiming that
if G is a permutation group and H is a normal subgroup then
the quotient G/H embeds into G. Are you sure that is true?
On Fri, Jul 31, 2009 at 11:36 AM, Robert Schwarzm...@rschwarz.net wrote:
Hi all, I was just playing around with permutations, when something
puzzled me:
sage: G = SymmetricGroup(4)
sage: H = G.normal_subgroups()[1]
sage: H
Permutation Group with generators [(1,3)(2,4), (1,4)(2,3)]
sage: G.quotient_group(H)
Permutation Group with generators [(1,2)(3,6)(4,5), (1,3,5)(2,4,6)
Look at
sage: G.quotient_group??
It turns out that Sage asks GAP to create the image of the morphism G -
G/H, as far as I can tell, and in so doing creates that image as a
separate (sub)permutation group. In particular, it using
RegularActionHomomorphism to do this, and at
http://www.gap-system.org/Manuals/doc/htm/ref/CHAP039.htm#SSEC007.2 it
says returns an isomorphism from G onto the regular permutation
representation of G and certainly in this case G/H (the relevant
group) has six elements!
Though I agree that this could be confusing, the good part is that
this creates (an isomorphic) group without having to talk about which
element of the coset you pick each time. It would be misleading to
say that (1234) was an element of G/H (which I think is what David was
getting at). There are ways to get cosets in GAP, of course (maybe
wrapped in Sage?) but I don't know much about them.
I hope this helps!
- kcrisman
Where do the 5 and 6 suddenly come from? In my understanding the
elements of the quotient group G/H are classes of elements of G, which
operates on {1, 2, 3, 4}.
Also, there is a method of G called quotient, which raises and
NotImplementedError, which is a little confusing, given an
implementation of the quotient group is actually available.
Running Sage 4.1 on Arch Linux 64 bit.
--
Robert Schwarz m...@rschwarz.net
Get my public key athttp://rschwarz.net/key.asc
--~--~-~--~~~---~--~~
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URLs: http://www.sagemath.org
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[sage-devel] Re: Sage sandpiles package, 4ti2 and glpk spkgs
I'm just editing the subject line to attract attention from people
like Mike Hansen who might have done overlapping work.
-Marshall
On Jul 31, 11:03 am, Marshall Hampton hampto...@gmail.com wrote:
I am trying to make an spkg for 4ti2, but I am having trouble getting
it to recognize GMP. I'm sure many people on this list are more
qualified than I am to figure that out.
t4i2 requires the linear programming package glpk, which I think I did
succeed in making an spkg for - at least it works on my mac, and its
pretty minimal so I would think it works on linux.
My current attempts are at:
http://www.d.umn.edu/~mhampton/4ti2.p0.spkghttp://www.d.umn.edu/~mhampton/glpk.p0.spkg
in case anyone wants to take a look and fix or improve them.
-Marshall
On Jul 27, 4:30 pm, David Joyner wdjoy...@gmail.com wrote:
I'm having trouble with 4ti installation. Maybe I'm just too impatient.
Do you have an spkg for it?
On Mon, Jul 20, 2009 at 11:02 PM, davidpdav...@reed.edu wrote:
Marshall and David: thanks very much for these suggestions.
Dave
On Jul 20, 4:59 am, David Joyner wdjoy...@gmail.com wrote:
On Sun, Jul 19, 2009 at 3:33 PM, davidpdav...@reed.edu wrote:
I have been working on a Sage package for doing computations involving
the
AbelianSandpileModel. In addition, this summer I am the mentor for
a Google
Summer of Code project which is a java application for visualizing and
analyzing sandpiles. The latest addition to the java program has been
the
ability to interact with Sage. For a glance at what has been going
on, I would
recommend:
www.reed.edu/~davidp/sand
especially
www.reed.edu/~davidp/sand/sage/html/sage_sandpiles.html
and
www.reed.edu/~davidp/sand/program/program.html
It would be great to get feedback from Sage users. The Google Summer
I've read the papers on RR spaces of graphs, and related papers using
tropical curves,
so am very happy to see that this is implemented. Long ago, I looked
at the chip-firing papers.
However, I had no idea that these topics were related and have
forgotten what I read
about that aspect anyway.
You asked for comments. Looking
athttp://people.reed.edu/~davidp/sand/sage/html/sage_sandpiles.html#dis...
andhttp://people.reed.edu/~davidp/sand/sage/html/sage_sandpiles.html#pro...
(in other words looking at the *output* of your code and not the code
itself),
I have a few observations (which may or may not be useful or correct:-):
1) it seems to me that you have implemented rather hackish methods for
constructing and manipulating divisors on graphs. It would be nice if
they were implemented
in a way similar to divisors on curves (ie, as a class with methods
for addition, etc).
2) It seems you have a included some print statements for the r_of_D
function:
sage: r_of_D = S.r_of_D(D)[0]
0
1
2
sage: r_of_F = S.r_of_D(F)[0]
0
though I am not sure. I would suggest having r_of_D return r(D) by
default and then
have an option 'algorithm = verbose' or something if you want to
output the divisor F
as well. I suggest eliminating the print statements. Typically and
assignment
in Python (such as r_of_D = S.r_of_D(D)[0]) has no values printed to the
screen.
3) You seem to have a non-standard method of describing a ring in Sage:
sage: g = {0:{},1:{0:1,3:1,4:1},2:{0:1,3:1,5:1},
3:{2:1,5:1},4:{1:1,3:1},5:{2:1,3:1}}
sage: S =Sandpile(g, 0)
sage: S.ring()
// characteristic : 0
// number of vars : 6
//block 1 : ordering dp
// : namesx_5 x_4 x_3 x_2 x_1 x_0
//block 2 : ordering C
It seems to me the print method should, again, mirror that of the
base_ring method for an algebraic curve.
Overall though I think this is extremely interesting code and I'm
looking forward
to playing with it a lot more! This week I'm helping with advising new
freshmen
who will be starting classes this fall, but will try to give you more
detailed
comments as soon as I can.
of Code
project will end in August, so if there are any features you would
like us to
add to the java application, please let us know as soon as possible.
Thanks,
Dave
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[sage-devel] Re: Circuits
kstueve wrote: On Jul 27, 3:11 am, David Kirkby david.kir...@onetel.net wrote: But for reserach purposes, symbolic results is a niche interest area and one where I feel Sage could be a 'must have' tool. But for general circuit simulation, I believe the tool shown is too limited. Would the oriiginal author of CircuitEngine be interested in substituing his numeric solving for symbolic solving? In that case, I have been very interested in implementing symbolic solving. Well Kevin, if you are interested in implementing symbolic solving, then I think that could be a great addition to Sage. Certainly a look at the papers on 'Nodal' which was available for Mathematica http://library.wolfram.com/infocenter/Articles/2225/ http://www.macallanconsulting.com/nodalinfo.htm http://140.177.205.65/infocenter/Books/48/ http://ieeexplore.ieee.org/Xplore/login.jsp?url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel1%2F2219%2F11082%2F00503156.pdf%3Farnumber%3D503156authDecision=-203 would be worth looking at. When I looked on Sourceforge, I believe there was a tool which did symbolic circuit analysis, but I doubt it would have the huge range of underlying maths that Sage has. What do others think about a symbolic, rather than a numeric circuit analysis package for Sage? To me at least, there are enough good free numeric based tools around. For symbolic, there are few if any. --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: possible bug in permutation/quotient group?
Hi! On Jul 31, 5:11 pm, kcrisman kcris...@gmail.com wrote: ... Though I agree that this could be confusing, the good part is that this creates (an isomorphic) group without having to talk about which element of the coset you pick each time. It would be misleading to say that (1234) was an element of G/H (which I think is what David was getting at). There are ways to get cosets in GAP, of course (maybe wrapped in Sage?) but I don't know much about them. Yes, that is the point that I wanted to make. Is it wrapped in Sage? Is there a method that associates to an element g of G an element in G.quotient_group(H) corresponding to its coset? Cheers, Simon --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: multiplicative_order in finite fields
Simon, Thanks. I think that in order for this to work, that finite field should have a new method, something like @cached_method _cofactor_information(self): N = self.order() return [ (N//p**r,p) for p,r in arith.factor(N)] which would factor the order, and then return all the cofactors and prime associated with them, and then change multiplicative order to use that method. Victor On Jul 31, 11:16 am, Simon King simon.k...@nuigalway.ie wrote: Hi Victor, On Jul 31, 3:59 pm, VictorMiller victorsmil...@gmail.com wrote: I was just looking at the code for multiplicative_order in finite_field_element.py, and noticed that it factors the group order, and find the cofactors corresponding to each prime power dividing the order (which is really the only algorithm that I know to do this). To avoid repeating this calculation for elements of finite fields it would be nice if the finite field could cache this information, so that it wouldn't have to be recalculated. The same remark should hold for finite abelian groups (since it's really the same algorithm). Do you know the cached_method decorator? In order to cache the field (or group) order, you just need to import the decorator by from sage.misc.cachefunc import cached_method and then, right in front of the method definition, put @cached_method: @cached_method def multiplicative_order(FiniteField_givaroElement self): ... Cheers, Simon --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: possible bug in permutation/quotient group?
javier wrote:
On Jul 31, 4:47 pm, David Joyner wdjoy...@gmail.com wrote:
Maybe I don't understand your question. It seems you are claiming
thatif G is a permutation group and H is a normal subgroup then
the quotient G/H embeds into G. Are you sure that is true?
In general, no it isn't. We have the short exact sequence
1 -- H -- G -- G/H --1
to embed G/H into G we would need it to split, which would mean that
the extension is trivial, or that G factorizes as a product of H and
G/H.
OK, my fault, too much wishful thinking here.
kcrisman wrote:
Look at
sage: G.quotient_group??
It turns out that Sage asks GAP to create the image of the morphism G -
G/H, as far as I can tell, and in so doing creates that image as a
separate (sub)permutation group. In particular, it using
RegularActionHomomorphism to do this, and at
http://www.gap-system.org/Manuals/doc/htm/ref/CHAP039.htm#SSEC007.2 it
says returns an isomorphism from G onto the regular permutation
representation of G and certainly in this case G/H (the relevant
group) has six elements!
Though I agree that this could be confusing, the good part is that
this creates (an isomorphic) group without having to talk about which
element of the coset you pick each time. It would be misleading to
say that (1234) was an element of G/H (which I think is what David was
getting at). There are ways to get cosets in GAP, of course (maybe
wrapped in Sage?) but I don't know much about them.
I hope this helps!
Yes, the cosets are, what I really want (although generators would be
very nice, too, if they exist, e.g. if the quotient is normal).
The application was the following: Suppose you have a linear equation
with multi-indexed variables, like x_1,2 + x_2,3 + x_3,1 == 0, which
also holds for all permutations of {1, 2, 3}, and I want to enumerate
all possible equations, but without duplicates. I hoped it was possible
to first compute the permutations under whose operation the exact same
equation result, then take the subgroup H generated by those and use
representants from the cosets of S_n/H to get all unique equations.
Looks like it's not that simple, since H doesn't even have to be normal,
in general.
Thanks a lot , though.
--
Robert Schwarz m...@rschwarz.net
Get my public key at http://rschwarz.net/key.asc
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[sage-devel] Re: possible bug in permutation/quotient group?
If that you want are the cosets you can get them simply using
cosets = Set([Set([h*g for h in H]) for g in G])
or if you want to get a representative of each coset you can then use
reps = [x[0] for x in cosets]
this should work even if H is not normal, the only issue being that
the set of cosets is not a group. Not sure if it will help with your
problem, though.
Cheers
J.
On Jul 31, 5:27 pm, Robert Schwarz m...@rschwarz.net wrote:
Yes, the cosets are, what I really want (although generators would be
very nice, too, if they exist, e.g. if the quotient is normal).
The application was the following: Suppose you have a linear equation
with multi-indexed variables, like x_1,2 + x_2,3 + x_3,1 == 0, which
also holds for all permutations of {1, 2, 3}, and I want to enumerate
all possible equations, but without duplicates. I hoped it was possible
to first compute the permutations under whose operation the exact same
equation result, then take the subgroup H generated by those and use
representants from the cosets of S_n/H to get all unique equations.
Looks like it's not that simple, since H doesn't even have to be normal,
in general.
Thanks a lot , though.
--
Robert Schwarz m...@rschwarz.net
Get my public key athttp://rschwarz.net/key.asc
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[sage-devel] Re: possible bug in permutation/quotient group?
javier wrote:
If that you want are the cosets you can get them simply using
cosets = Set([Set([h*g for h in H]) for g in G])
or if you want to get a representative of each coset you can then use
reps = [x[0] for x in cosets]
this should work even if H is not normal, the only issue being that
the set of cosets is not a group. Not sure if it will help with your
problem, though.
Yes, I will use that, for now, although I was hoping to get a nice
representation of the set of cosets, in terms of generators.
Anyway, it looks like I wasn't expecting too much after all. On
http://en.wikipedia.org/wiki/Group_action or S. Lang: Algebra (p. 28)
I find exactly what I want, supposing a group G acts transitively on a
set X:
If G does not act faithfully on X, one can easily modify the group to
obtain a faithful action. If we define N = {g in G : g·x = x for all x
in X}, then N is a normal subgroup of G; indeed, it is the kernel of the
homomorphism G → Sym(X). The factor group G/N acts faithfully on X by
setting (gN)·x = g·x. The original action of G on X is faithful if and
only if N = {e}.
So what I need, computationally, is not a map from G - G/N, but more
the other way round. More explicitly I want a (nice, simple, concise)
description of X (= orbit of G) in terms of elements of G. The cosets
will do that, but not really simpler than X itself. Provided I come up
with something sufficiently general, there will be a patch with a new
feature :-)
Thanks, again
--
Robert Schwarz m...@rschwarz.net
Get my public key at http://rschwarz.net/key.asc
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[sage-devel] Re: Sage sandpiles package
Marshall Hampton wrote: I am trying to make an spkg for 4ti2, but I am having trouble getting it to recognize GMP. I'm sure many people on this list are more qualified than I am to figure that out. t4i2 requires the linear programming package glpk, which I think I did succeed in making an spkg for - at least it works on my mac, and its pretty minimal so I would think it works on linux. My current attempts are at: http://www.d.umn.edu/~mhampton/4ti2.p0.spkg http://www.d.umn.edu/~mhampton/glpk.p0.spkg in case anyone wants to take a look and fix or improve them. -Marshall I decided to download glpk and try it on Solaris. I was going to congratulate you on there being no warnings messages from the compiler, then thought I'd suggest the -Wall flag was added if the compiler was the GNU one. But then I see that any warnings are thrown to /dev/null e.g. gcc -DHAVE_CONFIG_H -I. -I.. -I../include -g -O2 -MT glpipp01.lo -MD -MP -MF .deps/glpipp01.Tpo -c glpipp01.c -o glpipp01.o /dev/null 21 Personally I'd like to see all errors reported, not copied to /dev/null. --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage sandpiles package
Dr. David Kirkby wrote: Marshall Hampton wrote: I am trying to make an spkg for 4ti2, but I am having trouble getting it to recognize GMP. I'm sure many people on this list are more qualified than I am to figure that out. t4i2 requires the linear programming package glpk, which I think I did succeed in making an spkg for - at least it works on my mac, and its pretty minimal so I would think it works on linux. My current attempts are at: http://www.d.umn.edu/~mhampton/4ti2.p0.spkg http://www.d.umn.edu/~mhampton/glpk.p0.spkg in case anyone wants to take a look and fix or improve them. -Marshall I decided to download glpk and try it on Solaris. I was going to congratulate you on there being no warnings messages from the compiler, then thought I'd suggest the -Wall flag was added if the compiler was the GNU one. Sorry, I realised it was probably not you that wrote the glpk package, and so it is not you throwing warnings to /dev/null. But IMHO it would be worth removing the junk that throws warnings away, then see what warnings there are on each OS and fix them. There seems to be a few packages in Sage that hide warning messages - I'm not so sure its a good idea to add more that do this. --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: problem with docstring formatting in pyx file
Hi everyone, The problem was exactly as predicted - missing newlines and using single colons. Thanks! -- Carlo Hamalainen http://carlo-hamalainen.net --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage 4.1 installation on ubuntu 8.04 failed
On Fri, Jul 31, 2009 at 6:50 AM, wom wo.mac...@gmail.com wrote: Dear sage-devel team, I have tried to install sage4.1 on ubuntu 8.04 by following the steps described in the readme file, i.e. I downloaded the source code from the Berlin server, unzipped it to the subdirectory sage/sage-4.1 in my home directory, and started make from there. This has ended up in the following error after about 1 hour (trailing part of install.log below). Platform: AMD64AthlonX2, 2xHDD (200GB each), WindowsXP on 1.HDD, Ubuntu8.04 on 2.HDD How much RAM? Our main devel server is Ubuntu 8.04 and we all build Sage routinely on Ubuntu 8.04 so I can't imagine why your system is having trouble unless you have very limited RAM or something funny with your compiler (what version)? Anyway, this binary might work: http://sage.math.washington.edu/home/wstein/build/sage/dist/ It's a 64-bit Ubuntu 8.04 binary for sage-4.1. -- William (Before that I also tried to use the pre-compiled sage4.1 version for Ubuntu9.04 on ubuntu8.04, which failed because of the wrong glibc version (needs 2.8, have 2.7)). Is there an easy way to install sage 4.1 on ubuntu 9.04? Thanks and regards, wom --- end of install.log: make[5]: Leaving directory `/home/wolfgang/sage/sage-4.1/spkg/build/ linbox-1.1.6.p0/src/linbox/ring' make[4]: Leaving directory `/home/wolfgang/sage/sage-4.1/spkg/build/ linbox-1.1.6.p0/src/linbox/ring' make[4]: Entering directory `/home/wolfgang/sage/sage-4.1/spkg/build/ linbox-1.1.6.p0/src/linbox' /bin/bash ../libtool --tag=CXX --mode=link g++ -g -fPIC -I/home/ wolfgang/sage/sage-4.1/local/include -I/home/wolfgang/sage/sage-4.1/ local/include/linbox -L/home/wolfgang/sage/sage-4.1/local/lib -I/ home/wolfgang/sage/sage-4.1/spkg/build/linbox-1.1.6.p0/src -I/home/ wolfgang/sage/sage-4.1/spkg/build/linbox-1.1.6.p0/src/linbox -I/home/ wolfgang/sage/sage-4.1/local/include -I/home/wolfgang/sage/sage-4.1/ local/include -D__LINBOX_HAVE_CBLAS -o liblinbox.la -rpath /home/ wolfgang/sage/sage-4.1/local/lib dummy.lo util/libutil.la randiter/ libranditer.la -lcblas -latlas -L/home/wolfgang/sage/sage-4.1/local/ lib -lgmpxx -lgmp -L/home/wolfgang/sage/sage-4.1/local/lib -lgivaro libtool: link: cannot find the library `/tmp/gcc-4.3.1/lib/../lib64/ libstdc++.la' or unhandled argument `/tmp/gcc-4.3.1/lib/../lib64/ libstdc++.la' make[4]: *** [liblinbox.la] Error 1 make[4]: Leaving directory `/home/wolfgang/sage/sage-4.1/spkg/build/ linbox-1.1.6.p0/src/linbox' make[3]: *** [install-recursive] Error 1 make[3]: Leaving directory `/home/wolfgang/sage/sage-4.1/spkg/build/ linbox-1.1.6.p0/src/linbox' make[2]: *** [install-recursive] Error 1 make[2]: Leaving directory `/home/wolfgang/sage/sage-4.1/spkg/build/ linbox-1.1.6.p0/src' Error installing linbox real0m36.571s user0m24.886s sys 0m8.529s sage: An error occurred while installing linbox-1.1.6.p0 Please email sage-devel http://groups.google.com/group/sage-devel explaining the problem and send the relevant part of of /home/wolfgang/sage/sage-4.1/install.log. Describe your computer, operating system, etc. If you want to try to fix the problem, yourself *don't* just cd to /home/wolfgang/sage/sage-4.1/spkg/build/linbox-1.1.6.p0 and type 'make'. Instead type /home/wolfgang/sage/sage-4.1/sage -sh in order to set all environment variables correctly, then cd to /home/wolfgang/sage/sage-4.1/spkg/build/linbox-1.1.6.p0 (When you are done debugging, you can type exit to leave the subshell.) make[1]: *** [installed/linbox-1.1.6.p0] Error 1 make[1]: Leaving directory `/home/wolfgang/sage/sage-4.1/spkg' real53m5.033s user42m31.299s sys 8m30.552s Error building Sage. wolfg...@wolfgang-desktop:~/sage/sage-4.1$ -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage organizational structure, AWOL people
On Fri, Jul 31, 2009 at 8:59 AM, slabbe sla...@gmail.com wrote: Well, I think that if, someday, you know you want to go AWOL for a while, you should think about it a long time before. Something like a year before. You should make sure that all the knowledge you have (right access to all the tools AND how to use them) have been shared to people in the community. There are about 3-4 other people with admin privileges on most of our hardware resources, and they are physically in the UW math department server room (so professionally hosted and unaffected by me being AWOL). The DNS stuff (sagemath.org) is all 100% admin'd by me via godaddy.com, so I should find a way to fix things so that if somebody else needs to manage the DNS stuff that is possible (any volunteers -- Harald?). Anyway, I would appreciate people sharing their thoughts about how to make the Sage project more organized with respect to key people vanishing -- either temporarily or permantly -- from the project. If you have relevant experience with other projects, or no of good articles about this sort of thing, etc., please share. I was involved in the Fédération québécoise d'ultimate (frisbee) in the last two years and as a President for the last one until May 2009. Since I knew I was not going to renew my mandate, I was thinking a lot in all that year about how will the FQU continue its evolution without me. I must say here that the way I developped the FQU was a lot influenced by the Sage organizational structure and also by opinions written on sage-devel by the main developpers. Cool :-) So, dear William Stein, how much do you know that nobody else know?! The only thing I can think of along these lines is the login credentials for GoDaddy.com, from whom I rent the sagemath.org and sagenb.org domain names. Harald has volunteered to also hold that info.I might not be thinking of something obvious though. William --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage 4.1 installation on ubuntu 8.04 failed
On Jul 31, 3:50 pm, wom wo.mac...@gmail.com wrote: Is there an easy way to install sage 4.1 on ubuntu 9.04? Bruce Cohen told me recently [1] in sage-support that the debian lenny version works fine in ubuntu hardy. It works for me too! [1] http://groups.google.com/group/sage-support/browse_thread/thread/55feb3dd27853f8a/b52e28f218fdc971?lnk=gstq=hardy#b52e28f218fdc971 --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage sandpiles package, 4ti2, glpk packages
I agree, that doesn't sound good. At the moment, I just want to check out the sandpile functionality, so I don't think I will wade in and try to improve glpk, or bug the author to do so. On the positive side, I think I now have packages that install correctly, at least on my own mac. They are at: http://www.d.umn.edu/~mhampton/4ti2.p0.spkg http://www.d.umn.edu/~mhampton/glpk.p0.spkg i.e. I have overwritten my previous broken versions. This is also now trac ticket #6663 (http://trac.sagemath.org/sage_trac/ ticket/6663). -Marshall On Jul 31, 12:19 pm, Dr. David Kirkby david.kir...@onetel.net wrote: Dr. David Kirkby wrote: Marshall Hampton wrote: I am trying to make an spkg for 4ti2, but I am having trouble getting it to recognize GMP. I'm sure many people on this list are more qualified than I am to figure that out. t4i2 requires the linear programming package glpk, which I think I did succeed in making an spkg for - at least it works on my mac, and its pretty minimal so I would think it works on linux. My current attempts are at: http://www.d.umn.edu/~mhampton/4ti2.p0.spkg http://www.d.umn.edu/~mhampton/glpk.p0.spkg in case anyone wants to take a look and fix or improve them. -Marshall I decided to download glpk and try it on Solaris. I was going to congratulate you on there being no warnings messages from the compiler, then thought I'd suggest the -Wall flag was added if the compiler was the GNU one. Sorry, I realised it was probably not you that wrote the glpk package, and so it is not you throwing warnings to /dev/null. But IMHO it would be worth removing the junk that throws warnings away, then see what warnings there are on each OS and fix them. There seems to be a few packages in Sage that hide warning messages - I'm not so sure its a good idea to add more that do this. --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage sandpiles package, 4ti2, glpk packages
Marshall Hampton wrote: I agree, that doesn't sound good. At the moment, I just want to check out the sandpile functionality, so I don't think I will wade in and try to improve glpk, or bug the author to do so. On the positive side, I think I now have packages that install correctly, at least on my own mac. They are at: http://www.d.umn.edu/~mhampton/4ti2.p0.spkg http://www.d.umn.edu/~mhampton/glpk.p0.spkg i.e. I have overwritten my previous broken versions. This is also now trac ticket #6663 (http://trac.sagemath.org/sage_trac/ ticket/6663). -Marshall I'm not a mathematician, don't have a clue what this does, so I am probably looking at this from a very different point of view to most. But I don't think it's a good idea to include code that hides warnings. Again, it's a personal thing but when I look at web sites, like Wolfram Research's, which has 42 errors: http://validator.w3.org/check?uri=www.wolfram.comcharset=%28detect+automatically%29doctype=Inlinegroup=0 it always makes me wonder how seriously quality is taken. In contrast the Sage site has zero errors: http://validator.w3.org/check?uri=http%3A%2F%2Fwww.sagemath.org%2Fcharset=%28detect+automatically%29doctype=Inlinegroup=0user-agent=W3C_Validator%2F1.654 Mathematicians I've worked worth have always paid a lot of attention to detail - far more than I think engineers tend to. If someone covers up their compiler errors, it makes me wonder whether sufficient attention to detail is applied elsewhere. If someone like WRI, Maplesoft etc wanted to try to point out the disadvantages of Sage, showing how we hide warnings would be like giving them ammunition to blow us up with. I'm sure a lot of people will disagree with me, but personally I would avoid adding things to sage that rely on code that is built like that. Dave --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage sandpiles package, 4ti2, glpk packages
On Fri, Jul 31, 2009 at 2:04 PM, Dr. David Kirkby david.kir...@onetel.netwrote: Marshall Hampton wrote: I agree, that doesn't sound good. At the moment, I just want to check out the sandpile functionality, so I don't think I will wade in and try to improve glpk, or bug the author to do so. On the positive side, I think I now have packages that install correctly, at least on my own mac. They are at: http://www.d.umn.edu/~mhampton/4ti2.p0.spkghttp://www.d.umn.edu/%7Emhampton/4ti2.p0.spkg http://www.d.umn.edu/~mhampton/glpk.p0.spkghttp://www.d.umn.edu/%7Emhampton/glpk.p0.spkg i.e. I have overwritten my previous broken versions. This is also now trac ticket #6663 (http://trac.sagemath.org/sage_trac/ ticket/6663). -Marshall I'm not a mathematician, don't have a clue what this does, so I am probably looking at this from a very different point of view to most. But I don't think it's a good idea to include code that hides warnings. Again, it's a personal thing but when I look at web sites, like Wolfram Research's, which has 42 errors: http://validator.w3.org/check?uri=www.wolfram.comcharset=%28detect+automatically%29doctype=Inlinegroup=0 it always makes me wonder how seriously quality is taken. In contrast the Sage site has zero errors: http://validator.w3.org/check?uri=http%3A%2F%2Fwww.sagemath.org%2Fcharset=%28detect+automatically%29doctype=Inlinegroup=0user-agent=W3C_Validator%2F1.654 Mathematicians I've worked worth have always paid a lot of attention to detail - far more than I think engineers tend to. If someone covers up their compiler errors, it makes me wonder whether sufficient attention to detail is applied elsewhere. If someone like WRI, Maplesoft etc wanted to try to point out the disadvantages of Sage, showing how we hide warnings would be like giving them ammunition to blow us up with. I'm sure a lot of people will disagree with me, but personally I would avoid adding things to sage that rely on code that is built like that. I agree with you. It is difficult to disagree with such a natural technical way to improve quality. -- William --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Error in Graph.chromatic_number() and Graph.coloring()
There is such a search right here: http://groups..google.com/group/sage-devel http://groups.google.com/group/sage-devel Yes. I meant I love that Sage has a google search. I wish the nauty list had a google search, but I can't seem to find any search for their archives at all! Can't you just do a google search and add site:http://dcsmail.anu.edu.au/pipermail/nauty-list/? I just tried this for graph6, and it seemed to turn up a bunch of stuff: http://www.google.com/search?q=graph6+site%3Ahttp%3A%2F%2Fdcsmail.anu.edu.au%2Fpipermail%2Fnauty-list%2F Mind you, I didn't actually *look* at the results ... but it seems to be successfully searching that list. ;) -cc --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage sandpiles package, 4ti2, glpk packages
I'm not disagreeing, I just don't know how to quickly change that. If someone can give me some tips I will at least patch the spkgs. -Marshall On Jul 31, 4:21 pm, William Stein wst...@gmail.com wrote: On Fri, Jul 31, 2009 at 2:04 PM, Dr. David Kirkby david.kir...@onetel.netwrote: Marshall Hampton wrote: I agree, that doesn't sound good. At the moment, I just want to check out the sandpile functionality, so I don't think I will wade in and try to improve glpk, or bug the author to do so. On the positive side, I think I now have packages that install correctly, at least on my own mac. They are at: http://www.d.umn.edu/~mhampton/4ti2.p0.spkghttp://www.d.umn.edu/%7Emhampton/4ti2.p0.spkg http://www.d.umn.edu/~mhampton/glpk.p0.spkghttp://www.d.umn.edu/%7Emhampton/glpk.p0.spkg i.e. I have overwritten my previous broken versions. This is also now trac ticket #6663 (http://trac.sagemath.org/sage_trac/ ticket/6663). -Marshall I'm not a mathematician, don't have a clue what this does, so I am probably looking at this from a very different point of view to most. But I don't think it's a good idea to include code that hides warnings. Again, it's a personal thing but when I look at web sites, like Wolfram Research's, which has 42 errors: http://validator.w3.org/check?uri=www.wolfram.comcharset=%28detect+a... it always makes me wonder how seriously quality is taken. In contrast the Sage site has zero errors: http://validator.w3.org/check?uri=http%3A%2F%2Fwww.sagemath.org%2Fch... Mathematicians I've worked worth have always paid a lot of attention to detail - far more than I think engineers tend to. If someone covers up their compiler errors, it makes me wonder whether sufficient attention to detail is applied elsewhere. If someone like WRI, Maplesoft etc wanted to try to point out the disadvantages of Sage, showing how we hide warnings would be like giving them ammunition to blow us up with. I'm sure a lot of people will disagree with me, but personally I would avoid adding things to sage that rely on code that is built like that. I agree with you. It is difficult to disagree with such a natural technical way to improve quality. -- William --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage sandpiles package, 4ti2, glpk packages
On Fri, Jul 31, 2009 at 01:18:58PM -0700, Marshall Hampton wrote: I agree, that doesn't sound good. At the moment, I just want to check out the sandpile functionality, so I don't think I will wade in and try to improve glpk, or bug the author to do so. On the positive side, I think I now have packages that install correctly, at least on my own mac. They are at: http://www.d.umn.edu/~mhampton/4ti2.p0.spkg http://www.d.umn.edu/~mhampton/glpk.p0.spkg i.e. I have overwritten my previous broken versions. This is also now trac ticket #6663 (http://trac.sagemath.org/sage_trac/ ticket/6663). There is also a more recent GLPK spkg at http://trac.sagemath.org/sage_trac/ticket/6602 , I believe. -Willem Jan --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage sandpiles package, 4ti2, glpk packages
Marshall Hampton wrote: I'm not disagreeing, I just don't know how to quickly change that. If someone can give me some tips I will at least patch the spkgs. -Marshall There may be no quick fix, though the code did not look very large, so I doubt it would be a huge job to do it properly. The stages I would take would be: 1) Remove the copies to /dev/null. 2) Add -Wall to see all warning reported. 3) Build with the warnings displayed. 4) Contact the original author saying you would like to get his/her package into Sage, but some are objecting since the warnings were hidden. Point out what warnings you get. 5) Sort out why the compiler is complaining. That will take some time I expect. Though you have the advantage the package is not very large. Newsgroups are a good place to get help on how best to re-write code in a portable way that avoids warnings. You could ask on gcc-help, saying this bit of code generates a warning, but I'm not sure why Dave On Jul 31, 4:21 pm, William Stein wst...@gmail.com wrote: On Fri, Jul 31, 2009 at 2:04 PM, Dr. David Kirkby david.kir...@onetel.netwrote: Marshall Hampton wrote: I agree, that doesn't sound good. At the moment, I just want to check out the sandpile functionality, so I don't think I will wade in and try to improve glpk, or bug the author to do so. On the positive side, I think I now have packages that install correctly, at least on my own mac. They are at: http://www.d.umn.edu/~mhampton/4ti2.p0.spkghttp://www.d.umn.edu/%7Emhampton/4ti2.p0.spkg http://www.d.umn.edu/~mhampton/glpk.p0.spkghttp://www.d.umn.edu/%7Emhampton/glpk.p0.spkg i.e. I have overwritten my previous broken versions. This is also now trac ticket #6663 (http://trac.sagemath.org/sage_trac/ ticket/6663). -Marshall I'm not a mathematician, don't have a clue what this does, so I am probably looking at this from a very different point of view to most. But I don't think it's a good idea to include code that hides warnings. Again, it's a personal thing but when I look at web sites, like Wolfram Research's, which has 42 errors: http://validator.w3.org/check?uri=www.wolfram.comcharset=%28detect+a... it always makes me wonder how seriously quality is taken. In contrast the Sage site has zero errors: http://validator.w3.org/check?uri=http%3A%2F%2Fwww.sagemath.org%2Fch... Mathematicians I've worked worth have always paid a lot of attention to detail - far more than I think engineers tend to. If someone covers up their compiler errors, it makes me wonder whether sufficient attention to detail is applied elsewhere. If someone like WRI, Maplesoft etc wanted to try to point out the disadvantages of Sage, showing how we hide warnings would be like giving them ammunition to blow us up with. I'm sure a lot of people will disagree with me, but personally I would avoid adding things to sage that rely on code that is built like that. I agree with you. It is difficult to disagree with such a natural technical way to improve quality. -- William --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage sandpiles package, 4ti2, glpk packages
Thanks for pointing that out. I am somewhat disturbed by the positive review for that becoming a standard package, which seems inconsistent with previous policy. In #6663 I am merely suggesting 4ti2 and glpk as experimental packages, with the idea of transitioning them to optional, and then maybe standard eventually. Just to be clear, I have felt that in the past the hurdle for becoming a standard package is too high. I just want the process to be consistent. -Marshall On Jul 31, 4:51 pm, Willem Jan Palenstijn w...@usecode.org wrote: On Fri, Jul 31, 2009 at 01:18:58PM -0700, Marshall Hampton wrote: I agree, that doesn't sound good. At the moment, I just want to check out the sandpile functionality, so I don't think I will wade in and try to improve glpk, or bug the author to do so. On the positive side, I think I now have packages that install correctly, at least on my own mac. They are at: http://www.d.umn.edu/~mhampton/4ti2.p0.spkg http://www.d.umn.edu/~mhampton/glpk.p0.spkg i.e. I have overwritten my previous broken versions. This is also now trac ticket #6663 (http://trac.sagemath.org/sage_trac/ ticket/6663). There is also a more recent GLPK spkg athttp://trac.sagemath.org/sage_trac/ticket/6602, I believe. -Willem Jan --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage sandpiles package, 4ti2, glpk packages
On Fri, Jul 31, 2009 at 7:10 PM, Marshall Hamptonhampto...@gmail.com wrote: Thanks for pointing that out. I am somewhat disturbed by the positive review for that becoming a standard package, which seems inconsistent I don't know where you got that. I was the reviewer and I clearly said Positive review from me as far as I can tell, as an optional package. with previous policy. In #6663 I am merely suggesting 4ti2 and glpk as experimental packages, with the idea of transitioning them to optional, and then maybe standard eventually. Just to be clear, I have felt that in the past the hurdle for becoming a standard package is too high. I just want the process to be consistent. -Marshall On Jul 31, 4:51 pm, Willem Jan Palenstijn w...@usecode.org wrote: On Fri, Jul 31, 2009 at 01:18:58PM -0700, Marshall Hampton wrote: I agree, that doesn't sound good. At the moment, I just want to check out the sandpile functionality, so I don't think I will wade in and try to improve glpk, or bug the author to do so. On the positive side, I think I now have packages that install correctly, at least on my own mac. They are at: http://www.d.umn.edu/~mhampton/4ti2.p0.spkg http://www.d.umn.edu/~mhampton/glpk.p0.spkg i.e. I have overwritten my previous broken versions. This is also now trac ticket #6663 (http://trac.sagemath.org/sage_trac/ ticket/6663). There is also a more recent GLPK spkg athttp://trac.sagemath.org/sage_trac/ticket/6602, I believe. -Willem Jan --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage 4.1.1.rc0 released
Hi Georg, On Thu, Jul 30, 2009 at 9:35 PM, gswgeorgswe...@googlemail.com wrote: SNIP sage -t -long devel/sage/sage/modules/vector_real_double_dense.pyx ** File /home/mvngu/usr/bin/sage/devel/sage-main/sage/modules/ vector_real_double_dense.pyx, line 72: sage: v.stats_skew() Expected: 0.0 Got: doctest:106: SyntaxWarning: assertion is always true, perhaps remove parentheses? 0.0 ** 1 items had failures: 1 of 4 in __main__.example_2 ***Test Failed*** 1 failures. might be relatively easy to hunt down and fix. Unfortunately, I don't see this failure, since I use Mac OS X 10.4 only. (Does it occur on sage.math?) That doctest sometimes fails when I doctest everything under SAGE_ROOT/devel/sage-main using sage.math. The following commands on lines 71 and 72 of devel/sage/sage/modules/vector_real_double_dense.pyx are what cause this intermittent failure: sage: v = vector(RDF, range(9)) sage: v.stats_skew() 0.0 If you enter these two commands at the Sage prompt, you get just 0.0 and no report of syntax warning. -- Regards Minh Van Nguyen --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage sandpiles package, 4ti2, glpk packages
I got from Minh's comment: Once #6502 gets positive review, this SPKG could then be merged in the Sage standard packages repository. -Marshall On Jul 31, 6:20 pm, David Joyner wdjoy...@gmail.com wrote: On Fri, Jul 31, 2009 at 7:10 PM, Marshall Hamptonhampto...@gmail.com wrote: Thanks for pointing that out. I am somewhat disturbed by the positive review for that becoming a standard package, which seems inconsistent I don't know where you got that. I was the reviewer and I clearly said Positive review from me as far as I can tell, as an optional package. with previous policy. In #6663 I am merely suggesting 4ti2 and glpk as experimental packages, with the idea of transitioning them to optional, and then maybe standard eventually. Just to be clear, I have felt that in the past the hurdle for becoming a standard package is too high. I just want the process to be consistent. -Marshall On Jul 31, 4:51 pm, Willem Jan Palenstijn w...@usecode.org wrote: On Fri, Jul 31, 2009 at 01:18:58PM -0700, Marshall Hampton wrote: I agree, that doesn't sound good. At the moment, I just want to check out the sandpile functionality, so I don't think I will wade in and try to improve glpk, or bug the author to do so. On the positive side, I think I now have packages that install correctly, at least on my own mac. They are at: http://www.d.umn.edu/~mhampton/4ti2.p0.spkg http://www.d.umn.edu/~mhampton/glpk.p0.spkg i.e. I have overwritten my previous broken versions. This is also now trac ticket #6663 (http://trac.sagemath.org/sage_trac/ ticket/6663). There is also a more recent GLPK spkg athttp://trac.sagemath.org/sage_trac/ticket/6602, I believe. -Willem Jan --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage 4.1.1.rc0 released
On an intel mac running 10.4.11 I get: The following tests failed: sage -t devel/sage/sage/parallel/decorate.py sage -t devel/sage/sage/symbolic/expression.pyx Total time for all tests: 5865.0 seconds I assume these are known problems. -Marshall On Jul 29, 10:14 pm, Minh Nguyen nguyenmi...@gmail.com wrote: Hi folks, This is the first release candidate for Sage 4.1.1. Source and binary are at http://sage.math.washington.edu/home/mvngu/release/sage-4.1.1.rc0.tarhttp://sage.math.washington.edu/home/mvngu/release/sage-4.1.1.rc0-sag... and the upgrade path is http://sage.math.washington.edu/home/mvngu/release/sage-4.1.1.rc0/ I reverted the patches at #4460 and #5653 which was causing repository corruption in the previous alpha 1 release. So #4460 and #5653 are now merged in Sage 4.1.1.rc0, not 4.1.1.alpha1. So far, I have had at least two repository corruption issues due to the file SAGE_ROOT/devel/sage-main/MANIFEST.in not being updated accordingly by patches that introduce new files into the Sage library. Robert Miller has written a note about preventing such issues on the wiki page about release management: http://wiki.sagemath.org/release This wiki page has been organically growing as people record tips, issues and checklist items relevant to Sage release management. Feel free to flesh out that page. Sage 4.1.1.rc0 is a bug fix only release. One of the major bug fixes is to get NumPy and Sage to talk to each other better via tickets #5081 and #6506. People have been reporting issues like this in the sage-devel and sage-support mailing lists. Now is the time to try this out and stress test how well Sage and NumPy communicate with each other. The 4.1.1 release cycle is now strictly in feature-freeze, bug-fix only mode. The following tickets were merged in Sage 4.1.1.rc0: #4460: Mitesh Patel: add link to PDF manuals in doc/html/index.html [Reviewed by John Palmieri, Minh Van Nguyen] #5081: Robert Bradshaw: Make numpy play nice with Sage types [Reviewed by Jason Grout] #5653: Tom Boothby, Evan Fosmark, John Palmieri, Mitesh Patel: display docstrings in the notebook using html and jsMath [Reviewed by William Stein, Minh Van Nguyen, John Palmieri] #6251: Dan Drake: LogoutResource in sage/server/simple/twist.py doesn't really log you out [Reviewed by William Stein, John Palmieri] #6302: William Stein: make openopt an optional spkg [Reviewed by David Joyner, Harald Schilly] #6506: Robert Bradshaw, Jason Grout: further numpy type conversions [Reviewed by Jason Grout, Robert Bradshaw, Minh Van Nguyen] #6542: Marshall Hampton: tachyon ouput seems broken in sage-4.1 [Reviewed by Tim Dumol] #6554: Jason Grout: plotting sparse matrices converts the matrix to a dense matrix [Reviewed by David Joyner] #6639: Peter McNamara: Documentation for Lyndon words [Reviewed by Jason Bandlow] #6644: John Palmieri: fix doctest error for lazy_attribute and abstract_method [Reviewed by Minh Van Nguyen] -- Regards Minh Van Nguyen --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage sandpiles package, 4ti2, glpk packages
Hi Marshall, On Sat, Aug 1, 2009 at 9:32 AM, Marshall Hamptonhampto...@gmail.com wrote: I got from Minh's comment: Once #6502 gets positive review, this SPKG could then be merged in the Sage standard packages repository. That was a typo on my part. It should be optional instead of standard. My apology for any inconveniences caused. -- Regards Minh Van Nguyen --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage 4.1.1.rc0 released
Hi Marshall, On Sat, Aug 1, 2009 at 9:35 AM, Marshall Hamptonhampto...@gmail.com wrote: On an intel mac running 10.4.11 I get: The following tests failed: sage -t devel/sage/sage/parallel/decorate.py sage -t devel/sage/sage/symbolic/expression.pyx Total time for all tests: 5865.0 seconds I assume these are known problems. The doctest failure in devel/sage/sage/parallel/decorate.py is tracked at ticket #6649: http://trac.sagemath.org/sage_trac/ticket/6649 and is only related to Mac OS X. I don't have a Mac with me so I can't test it. Any help in reviewing the patch posted by Georg is appreciated. As for the doctest failure in devel/sage/sage/symbolic/expression.pyx, Georg has reported that with the release of 4.1.1.alpha1, but there was no log for people to hunt down the failure. But my guess is that the relevant tickets are #6404 and #6243. -- Regards Minh Van Nguyen --~--~-~--~~~---~--~~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage sandpiles package, 4ti2 and glpk spkgs
Thanks for trying this Marshall. Unfortunately, your spkg, and the
older experimental spkg,
for 4ti2, both fail to install on my amd64 ubuntu 9.04 machine. I have
N Cohen's version of the
glpk spkg installed.
On Fri, Jul 31, 2009 at 12:18 PM, Marshall Hamptonhampto...@gmail.com wrote:
OK, that was stupid of me, I should have looked in the experimental
packages first. There are older ones for 4ti2 and glpk, which might
solve my problems.
-Marshall
On Jul 31, 11:15 am, Marshall Hampton hampto...@gmail.com wrote:
I'm just editing the subject line to attract attention from people
like Mike Hansen who might have done overlapping work.
-Marshall
On Jul 31, 11:03 am, Marshall Hampton hampto...@gmail.com wrote:
I am trying to make an spkg for 4ti2, but I am having trouble getting
it to recognize GMP. I'm sure many people on this list are more
qualified than I am to figure that out.
t4i2 requires the linear programming package glpk, which I think I did
succeed in making an spkg for - at least it works on my mac, and its
pretty minimal so I would think it works on linux.
My current attempts are at:
http://www.d.umn.edu/~mhampton/4ti2.p0.spkghttp://www.d.umn.edu/~mham...
in case anyone wants to take a look and fix or improve them.
-Marshall
On Jul 27, 4:30 pm, David Joyner wdjoy...@gmail.com wrote:
I'm having trouble with 4ti installation. Maybe I'm just too impatient.
Do you have an spkg for it?
On Mon, Jul 20, 2009 at 11:02 PM, davidpdav...@reed.edu wrote:
Marshall and David: thanks very much for these suggestions.
Dave
On Jul 20, 4:59 am, David Joyner wdjoy...@gmail.com wrote:
On Sun, Jul 19, 2009 at 3:33 PM, davidpdav...@reed.edu wrote:
I have been working on a Sage package for doing computations
involving
the
AbelianSandpileModel. In addition, this summer I am the mentor for
a Google
Summer of Code project which is a java application for visualizing
and
analyzing sandpiles. The latest addition to the java program has
been
the
ability to interact with Sage. For a glance at what has been going
on, I would
recommend:
www.reed.edu/~davidp/sand
especially
www.reed.edu/~davidp/sand/sage/html/sage_sandpiles.html
and
www.reed.edu/~davidp/sand/program/program.html
It would be great to get feedback from Sage users. The Google
Summer
I've read the papers on RR spaces of graphs, and related papers using
tropical curves,
so am very happy to see that this is implemented. Long ago, I looked
at the chip-firing papers.
However, I had no idea that these topics were related and have
forgotten what I read
about that aspect anyway.
You asked for comments. Looking
athttp://people.reed.edu/~davidp/sand/sage/html/sage_sandpiles.html#dis...
andhttp://people.reed.edu/~davidp/sand/sage/html/sage_sandpiles.html#pro...
(in other words looking at the *output* of your code and not the code
itself),
I have a few observations (which may or may not be useful or
correct:-):
1) it seems to me that you have implemented rather hackish methods for
constructing and manipulating divisors on graphs. It would be nice if
they were implemented
in a way similar to divisors on curves (ie, as a class with methods
for addition, etc).
2) It seems you have a included some print statements for the r_of_D
function:
sage: r_of_D = S.r_of_D(D)[0]
0
1
2
sage: r_of_F = S.r_of_D(F)[0]
0
though I am not sure. I would suggest having r_of_D return r(D) by
default and then
have an option 'algorithm = verbose' or something if you want to
output the divisor F
as well. I suggest eliminating the print statements. Typically and
assignment
in Python (such as r_of_D = S.r_of_D(D)[0]) has no values printed to
the screen.
3) You seem to have a non-standard method of describing a ring in
Sage:
sage: g = {0:{},1:{0:1,3:1,4:1},2:{0:1,3:1,5:1},
3:{2:1,5:1},4:{1:1,3:1},5:{2:1,3:1}}
sage: S =Sandpile(g, 0)
sage: S.ring()
// characteristic : 0
// number of vars : 6
// block 1 : ordering dp
// : names x_5 x_4 x_3 x_2 x_1 x_0
// block 2 : ordering C
It seems to me the print method should, again, mirror that of the
base_ring method for an algebraic curve.
Overall though I think this is extremely interesting code and I'm
looking forward
to playing with it a lot more! This week I'm helping with advising
new freshmen
who will be starting classes this fall, but will try to give you more
detailed
comments as soon as I can.
of Code
project will end in August, so if there are any features you would
like us to
add to the java application,
[sage-devel] Re: Sage sandpiles package, 4ti2 and glpk spkgs
Can you put the source of the failure up at
http://trac.sagemath.org/sage_trac/ticket/6663?
Thanks for trying it out!
Marshall
On Jul 31, 7:06 pm, David Joyner wdjoy...@gmail.com wrote:
Thanks for trying this Marshall. Unfortunately, your spkg, and the
older experimental spkg,
for 4ti2, both fail to install on my amd64 ubuntu 9.04 machine. I have
N Cohen's version of the
glpk spkg installed.
On Fri, Jul 31, 2009 at 12:18 PM, Marshall Hamptonhampto...@gmail.com wrote:
OK, that was stupid of me, I should have looked in the experimental
packages first. There are older ones for 4ti2 and glpk, which might
solve my problems.
-Marshall
On Jul 31, 11:15 am, Marshall Hampton hampto...@gmail.com wrote:
I'm just editing the subject line to attract attention from people
like Mike Hansen who might have done overlapping work.
-Marshall
On Jul 31, 11:03 am, Marshall Hampton hampto...@gmail.com wrote:
I am trying to make an spkg for 4ti2, but I am having trouble getting
it to recognize GMP. I'm sure many people on this list are more
qualified than I am to figure that out.
t4i2 requires the linear programming package glpk, which I think I did
succeed in making an spkg for - at least it works on my mac, and its
pretty minimal so I would think it works on linux.
My current attempts are at:
http://www.d.umn.edu/~mhampton/4ti2.p0.spkghttp://www.d.umn.edu/~mham...
in case anyone wants to take a look and fix or improve them.
-Marshall
On Jul 27, 4:30 pm, David Joyner wdjoy...@gmail.com wrote:
I'm having trouble with 4ti installation. Maybe I'm just too impatient.
Do you have an spkg for it?
On Mon, Jul 20, 2009 at 11:02 PM, davidpdav...@reed.edu wrote:
Marshall and David: thanks very much for these suggestions.
Dave
On Jul 20, 4:59 am, David Joyner wdjoy...@gmail.com wrote:
On Sun, Jul 19, 2009 at 3:33 PM, davidpdav...@reed.edu wrote:
I have been working on a Sage package for doing computations
involving
the
AbelianSandpileModel. In addition, this summer I am the mentor
for
a Google
Summer of Code project which is a java application for
visualizing and
analyzing sandpiles. The latest addition to the java program has
been
the
ability to interact with Sage. For a glance at what has been
going
on, I would
recommend:
www.reed.edu/~davidp/sand
especially
www.reed.edu/~davidp/sand/sage/html/sage_sandpiles.html
and
www.reed.edu/~davidp/sand/program/program.html
It would be great to get feedback from Sage users. The Google
Summer
I've read the papers on RR spaces of graphs, and related papers
using
tropical curves,
so am very happy to see that this is implemented. Long ago, I looked
at the chip-firing papers.
However, I had no idea that these topics were related and have
forgotten what I read
about that aspect anyway.
You asked for comments. Looking
athttp://people.reed.edu/~davidp/sand/sage/html/sage_sandpiles.html#dis...
andhttp://people.reed.edu/~davidp/sand/sage/html/sage_sandpiles.html#pro...
(in other words looking at the *output* of your code and not the
code itself),
I have a few observations (which may or may not be useful or
correct:-):
1) it seems to me that you have implemented rather hackish methods
for
constructing and manipulating divisors on graphs. It would be nice
if
they were implemented
in a way similar to divisors on curves (ie, as a class with methods
for addition, etc).
2) It seems you have a included some print statements for the
r_of_D function:
sage: r_of_D = S.r_of_D(D)[0]
0
1
2
sage: r_of_F = S.r_of_D(F)[0]
0
though I am not sure. I would suggest having r_of_D return r(D) by
default and then
have an option 'algorithm = verbose' or something if you want to
output the divisor F
as well. I suggest eliminating the print statements. Typically and
assignment
in Python (such as r_of_D = S.r_of_D(D)[0]) has no values printed
to the screen.
3) You seem to have a non-standard method of describing a ring in
Sage:
sage: g = {0:{},1:{0:1,3:1,4:1},2:{0:1,3:1,5:1},
3:{2:1,5:1},4:{1:1,3:1},5:{2:1,3:1}}
sage: S =Sandpile(g, 0)
sage: S.ring()
// characteristic : 0
// number of vars : 6
//block 1 : ordering dp
// : namesx_5 x_4 x_3 x_2 x_1 x_0
//block 2 : ordering C
It seems to me the print method should, again, mirror that of the
base_ring method for an algebraic curve.
Overall though I think this is extremely interesting code and I'm
looking forward
to playing with it a
[sage-devel] reviews for symbolics bug fixes
Hi, I just uploaded a new pynac package and patches which fix #6404 conjugate typesetting #6401 typesetting real and imag #6243 fderivative hash collision #6377 exp evaluation at infinity on trac. The package is here: http://sage.math.washington.edu/home/burcin/pynac/pynac-0.1.8.p2.spkg It would be good to include these in the 4.1.1 release. Are there any volunteers for reviews? Thanks. Burcin --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: reviews for symbolics bug fixes
On Sat, Aug 1, 2009 at 12:54 PM, Burcin Erocalbur...@erocal.org wrote: Hi, I just uploaded a new pynac package and patches which fix #6404 conjugate typesetting #6401 typesetting real and imag #6243 fderivative hash collision #6377 exp evaluation at infinity on trac. The package is here: http://sage.math.washington.edu/home/burcin/pynac/pynac-0.1.8.p2.spkg It would be good to have these tickets reviewed for 4.1.1, since we have been receiving reports of doctest failures in the module devel/sage/sage/symbolic/expression.pyx -- Regards Minh Van Nguyen --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage sandpiles package, 4ti2 and glpk spkgs
On Fri, Jul 31, 2009 at 8:26 PM, Marshall Hamptonhampto...@gmail.com wrote: Can you put the source of the failure up at http://trac.sagemath.org/sage_trac/ticket/6663? This failure I had was fake! Here's what I did. I first tried the evil experimental 4ti2*.spkg. That deleted N Cohen's good glpk install from the sage tree and installed its own version of glpk. The subsequent 4ti2 install failed. (I posted the log to http://sage.math.washington.edu/home/wdj/patches/4ti2-install1.log if you care.) I then tried to install your 4ti2, thinking I had the good glpk installed but actually I had the evil glpk installed. That install failed. That is the fake failure. I think forced a reinstall of the good glpk, which happily destroyed the evil one. At this point, your 4ti2 installed sucessfully. Because of all this craziness, I think in experimental (1) the old 4ti2 should be removed and replaced by yours. (2) the old glpk should be replaced by N Cohen's. Thanks for trying it out! Marshall On Jul 31, 7:06 pm, David Joyner wdjoy...@gmail.com wrote: Thanks for trying this Marshall. Unfortunately, your spkg, and the older experimental spkg, for 4ti2, both fail to install on my amd64 ubuntu 9.04 machine. I have N Cohen's version of the glpk spkg installed. On Fri, Jul 31, 2009 at 12:18 PM, Marshall Hamptonhampto...@gmail.com wrote: OK, that was stupid of me, I should have looked in the experimental packages first. There are older ones for 4ti2 and glpk, which might solve my problems. -Marshall On Jul 31, 11:15 am, Marshall Hampton hampto...@gmail.com wrote: I'm just editing the subject line to attract attention from people like Mike Hansen who might have done overlapping work. -Marshall On Jul 31, 11:03 am, Marshall Hampton hampto...@gmail.com wrote: I am trying to make an spkg for 4ti2, but I am having trouble getting it to recognize GMP. I'm sure many people on this list are more qualified than I am to figure that out. t4i2 requires the linear programming package glpk, which I think I did succeed in making an spkg for - at least it works on my mac, and its pretty minimal so I would think it works on linux. My current attempts are at: http://www.d.umn.edu/~mhampton/4ti2.p0.spkghttp://www.d.umn.edu/~mham... in case anyone wants to take a look and fix or improve them. -Marshall On Jul 27, 4:30 pm, David Joyner wdjoy...@gmail.com wrote: I'm having trouble with 4ti installation. Maybe I'm just too impatient. Do you have an spkg for it? On Mon, Jul 20, 2009 at 11:02 PM, davidpdav...@reed.edu wrote: Marshall and David: thanks very much for these suggestions. Dave On Jul 20, 4:59 am, David Joyner wdjoy...@gmail.com wrote: On Sun, Jul 19, 2009 at 3:33 PM, davidpdav...@reed.edu wrote: I have been working on a Sage package for doing computations involving the AbelianSandpileModel. In addition, this summer I am the mentor for a Google Summer of Code project which is a java application for visualizing and analyzing sandpiles. The latest addition to the java program has been the ability to interact with Sage. For a glance at what has been going on, I would recommend: www.reed.edu/~davidp/sand especially www.reed.edu/~davidp/sand/sage/html/sage_sandpiles.html and www.reed.edu/~davidp/sand/program/program.html It would be great to get feedback from Sage users. The Google Summer I've read the papers on RR spaces of graphs, and related papers using tropical curves, so am very happy to see that this is implemented. Long ago, I looked at the chip-firing papers. However, I had no idea that these topics were related and have forgotten what I read about that aspect anyway. You asked for comments. Looking athttp://people.reed.edu/~davidp/sand/sage/html/sage_sandpiles.html#dis... andhttp://people.reed.edu/~davidp/sand/sage/html/sage_sandpiles.html#pro... (in other words looking at the *output* of your code and not the code itself), I have a few observations (which may or may not be useful or correct:-): 1) it seems to me that you have implemented rather hackish methods for constructing and manipulating divisors on graphs. It would be nice if they were implemented in a way similar to divisors on curves (ie, as a class with methods for addition, etc). 2) It seems you have a included some print statements for the r_of_D function: sage: r_of_D = S.r_of_D(D)[0] 0 1 2 sage: r_of_F = S.r_of_D(F)[0] 0 though I am not sure. I would suggest having r_of_D return r(D) by default and then have an option 'algorithm = verbose' or something if you want to output the
[sage-devel] Re: Sage organizational structure, AWOL people
William Stein wrote: So, dear William Stein, how much do you know that nobody else know?! The only thing I can think of along these lines is the login credentials for GoDaddy.com, from whom I rent the sagemath.org http://sagemath.org and sagenb.org http://sagenb.org domain names. Harald has volunteered to also hold that info.I might not be thinking of something obvious though. Is there anything about the Sage Foundation that should be shared with appropriate people? 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
