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Re: [GiNaC-list] advice on a GiNaC based project.
by Bhalchandra Thatte 23 May '08

23 May '08

Hello Alex, Thanks for the script. I will take a look at it soon. At some point the graph theoretic part of my project will involve graph isomorphism, and generating all unlabeled graphs from some classes of graphs, generating random objects from various classes, ... and computing various polynomial invariants. Also, at the moment all I know is C (and some C++), so I will probably go ahead and give a try to C+++GiNaC. But I am definitely interested in looking at your script since there is also another open source project in python (called SAGE - software for algebra and geometry experimentation), and some of what I want to do may be possible in SAGE. Thanks to all of you who responded promptly. Regards, Bhalchandra Thatte Alfréd Rényi Institute of Mathematics Budapest ----- Original Message ---- From: alexander baker <baker.alexander(a)gmail.com> To: GiNaC discussion list <ginac-list(a)ginac.de> Cc: Bhalchandra Thatte <bdthatte(a)yahoo.com> Sent: Friday, May 23, 2008 11:12:35 AM Subject: Re: [GiNaC-list] advice on a GiNaC based project. I agree with Alexei, here is a similar example that I put together some time ago using Python, perhaps a high level script would be a better tool for the job! Enjoy. Alex http://www.alexfb.com/cgi-bin/twiki/view/PtPhysics/Adjacency-Matrix-EigenVe… 2008/5/23 Alexei Sheplyakov <varg(a)theor.jinr.ru>: Hello! On Fri, May 23, 2008 at 12:47:55AM -0700, Bhalchandra Thatte wrote: > I wish to write a few programs that do something like this: > take a graph or a tree > each vertex or edge of the graph has a variable associated with it. > walk on the graph or find certain subgraphs, and compute certain > multivariable polynomials in terms of the variables associated > with vertices or edges. I think boost.graph (for graph manipulations) and GiNaC (for symbolic computation) is a reasonable choice. > later possibly do numerical optimization of the polynomials using > an optimization library. Be forewarned: GiNaC does not provide any kind of numerical optimization. > I thought GiNaC would be ideal for this type of applications because > C++ will give me complete control over the data structures and > the efficiency. I suggest to think twice if you really need a low level programming language (such as C++) at all. Best regards, Alexei -- All science is either physics or stamp collecting. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iQIVAwUBSDaEzyXMWnuYxRVqAQL7XxAAok3ywm5yWWvGwSOI/XMCIE3Y7j23Q9td DH8TEX5hIt1kzASA33iaDsWVkvBPRyWPGTF6AJLOvnyOLX1LHcB0Q8F+ojfKmVIw o2raKOltLYO4oDB8K/edUtfLlUrLv7r688t6qdBBzDmxfbMQ/4/W32hioMvzr9yh isWgXIjBV/FV86D2hVF/q7PvbloulHVyxH3TwINkmyItaygfToaS5OyDJVdBeKbv SJ0gbqEKNkyWZ/4ZIZeJ0ckkOhP/fIDGO04YqVKrLUwy7Q1UZuuti3i92Vosr+Yb m7x7v5yZk0J/3W/S1x+ZOl/1tt8UVacAc9maIlQXM9kH0B8wG7vQCHHNKZ6XzHtN krUxNxw7ciWz4WY0tXg2vzePzMCzVN3nfaWLJ9Fznt3VPPDYuFfWQmsS7zPXXOS9 nHkmM9pSZ4wR8nLDZAmIH36J9QMmImx9d/T91na3tAhKm1/4Q/3uO1SLHahIgCcj dYkA8F1GWR082XlBqnWoISwlJjv1ZqNFsjISllixYk24+MvtODHohDEJnEUsAoWg jdol4XxpZS3UAGa+Cy7xpzC1iOpksEmG/3zQaI9QUI8GXdnXfM1noeAGDnH/JeF8 aEsu5Z6Wva3iZYBFj3SM/mnFqleumt6Jf4YBMDYiohQG5RoQCtQ4k/DjSED1JZiP gx4tfNdbA9A= =HgPN -----END PGP SIGNATURE----- _______________________________________________ GiNaC-list mailing list GiNaC-list(a)ginac.de https://www.cebix.net/mailman/listinfo/ginac-list -- Mobile: 07788 872118 Blog: www.alexfb.com -- All science is either physics or stamp collecting.

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advice on a GiNaC based project.
by Bhalchandra Thatte 23 May '08

23 May '08

Hi Everybody, I have just started using GiNaC (actually yet to be able to compile my first program), and I am also not an expert on C++. So I thought I would ask for a little advice here. I wish to write a few programs that do something like this: take a graph or a tree each vertex or edge of the graph has a variable associated with it. walk on the graph or find certain subgraphs, and compute certain multivariable polynomials in terms of the variables associated with vertices or edges. later possibly do numerical optimization of the polynomials using an optimization library. I thought GiNaC would be ideal for this type of applications because C++ will give me complete control over the data structures and the efficiency. But could someone comment if GiNaC is not the right choice? Thank you, Bhalchandra Thatte Alfréd Rényi Institute of Mathematics Budapest

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where is ginac-config?
by Chris Bouchard 06 May '08

06 May '08

GiNaC list, I've successfully installed GiNaC 1.4.3, config.log attached. Another software package, xloops, built on GiNaC is looking for ginac-config. It's expecting to see it in PREFIX/bin, where PREFIX was established while configuring GiNaC (ie ./configure --prefix=PREFIX). Here's a snip of on-screen indications during attemped configure of xloops ------------------------------------------------- checking for ginac-config... no checking for GiNaC - version >= 1.2.0... no *** The ginac-config script installed by GiNaC could not be found *** If GiNaC was installed in PREFIX, make sure PREFIX/bin is in *** your path, or set the GINACLIB_CONFIG environment variable to the *** full path to ginac-config. configure: error: need to have GiNaC installed -------------------------------------------------- PREFIX/bin is in my path and slocate ginac-config comes up empty. The only ginac file in PREFIX/bin is ginac-excompiler. I'm trying to avoid asking for help with xloops... So, here's my GiNaC question. X-loops was last rev'd 11 yrs ago, is the ginac-config script a thing of GiNaC's past or have I screwed up my install of GiNaC in such a way that ginac-config wasn't created...? Thanks for any help, Chris Bouchard

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Re: [GiNaC-list] where is ginac-config?
by Chris Bouchard 06 May '08

06 May '08

GiNaC list, I've found the last version of GiNaC that generated ginac-config (1.3.7) and using that version has solved my problem. I'm up and running now with the x-loops software and wanted to thank you all for the help you've provided. Sincerely, Chris Bouchard ---- Original message ---- >Date: Thu, 1 May 2008 22:13:16 -0500 (CDT) >From: Chris Bouchard <cbouchrd(a)uiuc.edu> >Subject: [GiNaC-list] where is ginac-config? >To: ginac-list(a)ginac.de > >GiNaC list, > >I've successfully installed GiNaC 1.4.3, config.log attached. > >Another software package, xloops, built on GiNaC is looking for ginac-config. It's expecting to see it in PREFIX/bin, where PREFIX was established while configuring GiNaC (ie ./configure --prefix=PREFIX). > >Here's a snip of on-screen indications during attemped configure of xloops >------------------------------------------------- >checking for ginac-config... no >checking for GiNaC - version >= 1.2.0... no >*** The ginac-config script installed by GiNaC could not be found >*** If GiNaC was installed in PREFIX, make sure PREFIX/bin is in >*** your path, or set the GINACLIB_CONFIG environment variable to the >*** full path to ginac-config. >configure: error: need to have GiNaC installed >-------------------------------------------------- > >PREFIX/bin is in my path and slocate ginac-config comes up empty. The only ginac file in PREFIX/bin is ginac-excompiler. I'm trying to avoid asking for help with xloops... > >So, here's my GiNaC question. X-loops was last rev'd 11 yrs ago, is the ginac-config script a thing of GiNaC's past or have I screwed up my install of GiNaC in such a way that ginac-config wasn't created...? > >Thanks for any help, >Chris Bouchard >________________ >config.gz (13k bytes) >________________ >_______________________________________________ >GiNaC-list mailing list >GiNaC-list(a)ginac.de >https://www.cebix.net/mailman/listinfo/ginac-list

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compiler compatibility?
by Chris Bouchard 24 Apr '08

24 Apr '08

GiNaC list, I'm having, what I think are, problems linking to GiNaC's precompiled libraries. I'm using gcc 3.4.6, and according to the gcc msg board I will likely be unsuccessful linking to any library compiled with a different version of gcc. I haven't noticed mention of the compiler version used to build GiNaC's libraries in the GiNaC documentation and was wondering if you had this information readily available? Does this explanation sound legitimate to you? Seems to me that if this were the case there'd be widespread problems using gcc... Here's what I'm doing: c++ code, ginactest.cpp (ex. from GiNaC tutorial) ------------------------------------------------- #include <iostream> #include "ginac.h" using namespace std; using namespace GiNaC; int main() { symbol x("x"), y("y"); ex poly; for (int i=0; i<3; ++i) poly += factorial(i+16)*pow(x,i)*pow(y,2-i); cout << poly << endl; return 0; } Invocation of g++ ------------------------------ ./g++ ginactest.cpp -o ginactest.exe /usr/lib/libgslcblas.so.0.0.0 -I/home/theorist/cbouchrd/GiNaC/ginac -L/home/theorist/cbouchrd/local/lib -lcln -lginac Error messages ------------------------------- /tmp/ccojEpA1.o(.gnu.linkonce.t._ZN5GiNaC5powerC1ERKNS_2exES3_+0xa): In function `GiNaC::power::power(GiNaC::ex const&, GiNaC::ex const&)': : undefined reference to `GiNaC::power::tinfo_static' /tmp/ccojEpA1.o(.gnu.linkonce.r._ZTVN5GiNaC9containerISt6vectorEE+0x6c): undefined reference to `GiNaC::basic::has(GiNaC::ex const&, unsigned int) const' /tmp/ccojEpA1.o(.gnu.linkonce.r._ZTVN5GiNaC9containerISt6vectorEE+0x84): undefined reference to `GiNaC::basic::is_polynomial(GiNaC::ex const&) const' /tmp/ccojEpA1.o(.gnu.linkonce.t._ZN5GiNaC9containerISt6vectorE9get_tinfoEv+0x4): In function `GiNaC::container<std::vector>::get_tinfo()': : undefined reference to `GiNaC::container<std::vector>::tinfo_static' collect2: ld returned 1 exit status I've attached GiNaC's config.log. If any additional information is required please let me know. Thanks for any help/ideas! Sincerely, Chris Bouchard

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GiNaC release 1.4.3
by Jens Vollinga 04 Apr '08

04 Apr '08

Hello again everybody, in order to fulfill the increased demand for GiNaC releases we proudly present: GiNaC 1.4.3 The changes are: * Fixed bug in numerical evaluation of multiple polylogarithms and alternating multiple zeta values introduced in version 1.4.2. * Nielsen polylog now invalidates its lookup tables in case the precision (Digits) has been changed. * Added new checks for recent bugs in the numerical evaluation of Li and zeta. As always, this release can be downloaded from http://www.ginac.de/Download.html Best wishes, Jens

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GiNaC release 1.4.2
by Jens Vollinga 03 Apr '08

03 Apr '08

Hello everybody, GiNaC 1.4.2 is out and available. The changes are: * Fixed VPATH building of documentation. * Fixed bug in numerical evaluation of multiple polylogarithms for arguments equal to certain roots of unity (thanks to Jianqiang Zhao). * Fixed check for memory leakage in parser. * Made internal function coerce() standard compliant. * Improved lsolve() of systems containing non-numeric coefficients. * Improved automatic test programs. Now they work on MinGW and Cygwin as well. As always, this release can be downloaded from http://www.ginac.de/Download.html Best wishes, Jens

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Building ginac without pkg-config
by Warren Weckesser 26 Mar '08

26 Mar '08

I am trying to build ginac on a computer that doesn't have pkg-config installed. I have CLN installed in $HOME/local. The final output of ./configure --prefix=$HOME/local is: checking for dlopen in -ldl... yes checking for pkg-config... no checking for CLN... configure: error: The pkg-config script could not be found or is too old. Make sure it is in your PATH or set the PKG_CONFIG environment variable to the full path to pkg-config. Alternatively, you may set the environment variables CLN_CFLAGS and CLN_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details. To get pkg-config, see <http://pkg-config.freedesktop.org/>. See `config.log' for more details. The problem is I get this error from ./configure even after defining CLN_CFLAGS and CLN_LIBS, like this: $ export CLN_CFLAGS=-I$HOME/local/include $ export CLN_LIBS=-L$HOME/local/lib Does ./configure actually check for the environment variables, like the message suggests it does? Regards, Warren

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Help!!! I cannot build ginac 1.4.1 on mingw
by Tatsuro MATSUOKA 28 Feb '08

28 Feb '08

Hello I'm an octave-cygwin and octave-mingw maintainer. Recently a new sybolic package has been released on the octave-forge (octave optional package). On the cygwin the package build was successful but on the mingw it was failed. For the cygwin, the cln-1.1.13 with the gmp 4.2.1 and ginac 1.4.1 have been installed. For the mingw, those are the cln-1.1.10 wihout the gmp and the ginac-1.3.7. The there would be possible, I tried to build the ginac 1.4.1. I have buid the gmp 4.2.2 and the cln-1.1.13 and make check of both tests were successful. So I have tried to make ginaic 1.4.1. At the compling stage, I have a troble in excompiler.cpp for mktemp. The mktemp does not exist for the normal mingw environment. So I partly ported the glibc on the GnuWin32. extern "C"{ char *mktemp (char *__template) ; } was added and link against glibc library. The complipe stage was sucessful. However the link stage there exited a lot of errors. A part of them are placed at the end of this mail. I suspect that my way was wrong. What are the possibilities? Regards ****information The ginac was build under the following flag, export LDFLAGS='-L/mingw/lib -L/usr/local/octave-3.0.0/lib -L/GnuWin32/lib -L/GnuWin32/bin' export CPPFLAGS='-I/mingw/include -I/usr/local/octave-3.0.0/include -I/GnuWin32/include' export CLN_CFLAGS='-IC:/Programs/msys/1.0/local/octave-3.0.0/include' export CLN_LIBS='-LC:/Programs/msys/1.0/local/octave-3.0.0/lib' #export GINAC_CFLAGS='-IC:/Programs/msys/1.0/local/octave-3.0.0/include' #export GINAC_LIBS='-LC:/Programs/msys/1.0/local/octave-3.0.0/lib' export PKG_CONFIG=C:/Programs/MinGW/bin/pkg-config.exe export PKG_CONFIG_PATH=C:/Programs/msys/1.0/local/octave-3.0.0/lib/pkgconfig export LIBS='-lgw32c' The the gmp and the cln headers and libs are installed in /usr/local/octave-3.0.0/include and /usr/local/octave-3.0.0/lib, respectively ./configure --prefix=/usr/local/ginac make The gcc infomation $ gcc -v Reading specs from c:/Programs/MinGW/bin/../lib/gcc/mingw32/3.4.5/specs Configured with: ../gcc-3.4.5/configure --with-gcc --with-gnu-ld --with-gnu-as --host=mingw32 --target=mingw32 --prefix=/mingw --enable-threads --disable-nls --enable-languages=c,c++,f77,ada,objc,java --disable-win32-registry --disable-shared --enable-sjlj-exceptions --enable-libgcj --disable-java-awt --without-x --enable-java-gc=boehm --disable-libgcj-debug --enable-interpreter --enable-hash-synchronization --enable-libstdcxx-debug Thread model: win32 gcc version 3.4.5 (mingw special) ********************** ./configure --prefix=/usr/local/ginac checking for a BSD-compatible install... /bin/install -c : checking pkg-config is at least version 0.9.0... yes checking for CLN... yes : config.status: creating config.h config.status: config.h is unchanged config.status: executing depfiles commands Configuration of GiNaC 1.4.1 done. Now type "make". make ************************** : : C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/number.h:46: undefined reference to `cln::gcd(cln::cl_I const&, cln::cl_I const&)' ../ginac/.libs/libginac.a(numeric.o): In function `ZN5GiNaC3gcdERKNS_7numericES2_': C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' ../ginac/.libs/libginac.a(numeric.o):C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: more undefined references to `cln::cl_free_heap_object(cln::cl_heap*)' follow ../ginac/.libs/libginac.a(numeric.o): In function `ZN5GiNaC3lcmERKNS_7numericES2_': C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/number.h:46: undefined reference to `cln::lcm(cln::cl_I const&, cln::cl_I const&)' ../ginac/.libs/libginac.a(numeric.o): In function `ZN5GiNaC3lcmERKNS_7numericES2_': C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined refeC:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' ../ginac/.libs/libginac.a(numeric.o):C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: more undefined references to `cln::cl_free_heap_object(cln::cl_heap*)' follow ../ginac/.libs/libginac.a(numeric.o): In function `ZN5GiNaC4sqrtERKNS_7numericE': c:/usr/tatsu/msys/octaves/ginac-1.4.1/ginac/numeric.cpp:2379: undefined reference to `cln::sqrt(cln::cl_N const&)' ../ginac/.libs/libginac.a(numeric.o): In function `ZN5GiNaC4sqrtERKNS_7numericE': C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' ../ginac/.libs/libginac.a(numeric.o): In function `ZN5GiNaC5isqrtERKNS_7numericE': C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/number.h:46: undefined reference to `cln::isqrt(cln::cl_I const&, cln::cl_I*)' ../ginac/.libs/libginac.a(numeric.o): In function `ZN5GiNaC5isqrtERKNS_7numericE': C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' ../ginac/.libs/libginac.a(numeric.o): In function `ZN5GiNaC7PiEvalfEv': c:/usr/tatsu/msys/octaves/ginac-1.4.1/ginac/ex.h:262: undefined reference to `cln::default_float_format' c:/usr/tatsu/msys/octaves/ginac-1.4.1/ginac/ex.h:262: undefined reference to `cln::pi(cln::float_format_t)' ../ginac/.libs/libginac.a(numeric.o): In function `ZN5GiNaC7PiEvalfEv': C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' rence to `cln::cl_free_heap_object(cln::cl_heap*)' ../ginac/.libs/libginac.a(numeric.o): In function `ZN5GiNaC10EulerEvalfEv': c:/usr/tatsu/msys/octaves/ginac-1.4.1/ginac/ex.h:262: undefined reference to `cln::default_float_format' c:/usr/tatsu/msys/octaves/ginac-1.4.1/ginac/ex.h:262: undefined reference to `cln::eulerconst(cln::float_format_t)' ../ginac/.libs/libginac.a(numeric.o): In function `ZN5GiNaC10EulerEvalfEv': C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' C:/Programs/msys/1.0/local/octave-3.0.0/include/cln/object.h:216: undefined reference to `cln::cl_free_heap_object(cln::cl_heap*)' ../ginac/.libs/libginac.a(numeric.o): In function `ZN5GiNaC12CatalanEvalfEv': c:/usr/tatsu/msys/octaves/ginac-1.4.1/ginac/ex.h:262: undefined reference to `cln::default_float_format' c:/usr/tatsu/msys/octaves/ginac-1.4.1/ginac/ex.h:262: undefined reference to `cln::catalanconst(cln::float_format_t)' ../ginac/.libs/libginac.a(numeric.o): In function `ZN5GiNaC12CatalanEvalfEv': : : -------------------------------------- Easy + Joy + Powerful = Yahoo! 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Compiling on AMD64/openSUSE 10.3
by Joerg Arndt 21 Feb '08

21 Feb '08

For the INSTALL file, you may want to update the compile time(s): make 596.33s user 22.68s system 99% cpu 10:22.74 total make check 465.83s user 11.77s system 99% cpu 8:01.45 total this is on model name : AMD Athlon(tm) 64 Processor 3400+ cpu MHz : 2200.000 cache size : 512 KB (Athlon/800MHz is a bit old-ish by now) Add the AMD64 architecture here: ------------------------------------ Known to work with: - Linux on x86, Alpha and Sparc using GCC 3.x and 4.0. ------------------------------------ after make install ginsh fails with ginsh: error while loading shared libraries: \ libginac-1.4.so.0: cannot open shared object file: No such file or directory running ldconfig fixes the problem. So mention that in the INSTALL file: ------------------------------------ To install from a source .tar.bz2 distribution: $ ./configure $ make [become root if necessary] # make install # ldconfig <--= line added ------------------------------------ ... or trigger ldconfig with the install target cheers, jj

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