- GiNaC-devel - ginac.de

Re: [GiNaC-devel] indexes of clifford objects
by Vladimir V. Kisil 20 Jun '11

20 Jun '11

Dear Richard, >>>>> On Sun, 12 Jun 2011 12:13:30 +0200, "Richard B. Kreckel" <kreckel(a)ginac.de> said: RK> Sadly, it turns out that clifford_check6 triggers yet another RK> assertion, this time in clifford.cpp:1249. I am attaching the patch. In two places a conversion to indexed shall be preceded by a corresponding check. Best wishes, Vladimir -- Vladimir V. Kisil email: kisilv(a)maths.leeds.ac.uk -- www: http://www.maths.leeds.ac.uk/~kisilv/

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-356-g77c2acd
by git＠ginac.de 12 Jun '11

12 Jun '11

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The branch, master has been updated via 77c2acd59e345fe7697304a865a8f41d43494129 (commit) from 761a6d99032dbbd82e8166036c17b498edfaa058 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 77c2acd59e345fe7697304a865a8f41d43494129 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Sun Jun 12 23:10:07 2011 +0200 Relax assertion in clifford ctor. Class clifford can be constructed with an idx object, now, not just with a varidx. ----------------------------------------------------------------------- Summary of changes: ginac/clifford.cpp | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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indexes of clifford objects
by Richard B. Kreckel 12 Jun '11

12 Jun '11

Hi! When compiling GiNaC with -DDO_GINAC_ASSERT, exam_clifford.cpp fails the test suite because clifford.cpp:105, assertion `is_a<varidx>(mu)' is violated. The function clifford_moebius_map constructs a clifford unit with an idx, not a varidx, if G is a matrix. The code in question was written by Vladimir in 2006. From a physicists point of view, I thought that it doesn't make sense to construct a clifford object with an idx instead of a varidx. But then, what's clifford_moebius_map doing? On the other hand, I also noticed that the tutorial does include examples of clifford objects with idx indices in section "A generic Clifford algebra". Strange. If someone with more insight could shed a light on this I could finish my recent quest to make GiNaC pass its test suite even when compiled with -DDO_GINAC_ASSERT. That would be great. Cheers -richy. -- Richard B. Kreckel <http://www.ginac.de/~kreckel/>

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Re: [GiNaC-devel] indexes of clifford objects
by Vladimir V. Kisil 10 Jun '11

10 Jun '11

Dear Richard, >>>>> On Mon, 06 Jun 2011 08:24:16 +0200, "Richard B. Kreckel" < kreckel(a)ginac.de> said: RK> and to the tutorial. Either way, can you recommend a patch? I am attaching the patch, which admits only varidx as valid parameters. I Hope I did everything right. Best wishes, Vladimir -- Vladimir V. Kisil email: kisilv(a)maths.leeds.ac.uk -- www: http://www.maths.leeds.ac.uk/~kisilv/

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-355-g761a6d9
by git＠ginac.de 31 May '11

31 May '11

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The branch, master has been updated via 761a6d99032dbbd82e8166036c17b498edfaa058 (commit) from 23c3c2c716953d6e4b12548994e210e8d57057ad (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 761a6d99032dbbd82e8166036c17b498edfaa058 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Tue May 31 08:46:32 2011 +0200 Care about refcounts when reclaiming memory allocated for static objects. With commit aff357309f6 we started freeing numeric flyweights when the library usage count drops to zero. But that triggers assertions in basic::~basic when compiled with -DDO_GINAC_ASSERT because these flyweights are still being used by their matching ex objects (their refcount is still 1). Instead of removing that assertion, let's just call the ex::~ex manually and let it do the freeing. ----------------------------------------------------------------------- Summary of changes: ginac/utils.cpp | 99 ++++++++++++++++++++++++++++--------------------------- 1 files changed, 50 insertions(+), 49 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-354-g23c3c2c
by git＠ginac.de 27 May '11

27 May '11

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The branch, master has been updated via 23c3c2c716953d6e4b12548994e210e8d57057ad (commit) from 01d804753f9f140b2e470e10ff2b97ddae1627dd (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 23c3c2c716953d6e4b12548994e210e8d57057ad Author: Richard Kreckel <kreckel(a)ginac.de> Date: Fri May 27 08:51:05 2011 +0200 Janitorial commit. Remove some assertions that have been wrong since a while, in particular since 8ba901b532b, when we started to factor numerical factors from power objects. Fix some broken indentation. Fix some comment errors. Remove unused variable. ----------------------------------------------------------------------- Summary of changes: check/check_numeric.cpp | 1 - ginac/add.cpp | 2 +- ginac/expairseq.cpp | 12 ++++++------ ginac/factor.cpp | 1 - ginac/mul.cpp | 45 +++++++++++++-------------------------------- ginac/power.cpp | 3 +-- 6 files changed, 21 insertions(+), 43 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-352-g47a0c68
by git＠ginac.de 25 May '11

25 May '11

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The branch, master has been updated via 47a0c68f3e0c4af0ee22b3ca4fe0e5df66aa69db (commit) from e29b2b7b7804e98d5707b00bb124e0e01ec6409a (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 47a0c68f3e0c4af0ee22b3ca4fe0e5df66aa69db Author: Alexei Sheplyakov <Alexei.Sheplyakov(a)gmail.com> Date: Tue May 24 00:37:09 2011 +0300 [build] configure: don't abuse AC_CHECK_FILE. Unbreaks the cross-compilation. Checking for ginsh_parser.h in configure is not a good idea, since it 1) produces a bogus warning during an out of source build, 2) breaks cross-compilation. Solution: just skip that bogus check (auto* tools do a similar check in the run-time *for a reason*). ----------------------------------------------------------------------- Summary of changes: configure.ac | 4 ---- 1 files changed, 0 insertions(+), 4 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-353-g01d8047
by git＠ginac.de 25 May '11

25 May '11

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The branch, master has been updated via 01d804753f9f140b2e470e10ff2b97ddae1627dd (commit) from 47a0c68f3e0c4af0ee22b3ca4fe0e5df66aa69db (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 01d804753f9f140b2e470e10ff2b97ddae1627dd Author: Alexei Sheplyakov <Alexei.Sheplyakov(a)gmail.com> Date: Wed May 25 12:18:27 2011 +0300 configure: correctly warn about missing flex and/or bison. This version correctly handles out of source builds, does not break cross compilation, and contains no bashisms. ----------------------------------------------------------------------- Summary of changes: configure.ac | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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Re: [GiNaC-devel] [GiNaC-list] issues with ginac-1.6.0
by PG CLARK 25 May '11

25 May '11

Please disregard that. It was a bug in ubuntu 11 that just got fixed. That's the good news. Bad news is my program still gets killed for over use of ram and swap space. Are you really sure 1.6.0 has the improvement to simplified index in them? Tell me do we have an algorithm for taking 2 symetry trees acting on the same indexes and merging them to create one with the symetrys of both? If we had that I'm pretty sure I could write a far more efficient simplification algorithm. Quoting Stephen Montgomery-Smith <stephen(a)missouri.edu>: > You probably need to do > > sudo ldconfig > > PG CLARK wrote: >> Sorry thats a school boy error yes I'm running ubuntu 11.4, kernal >> 2.6.38-8-generic, gnome 2.32.1 (yes most of this isn't relevant but >> I'm going for completeness) >> >> 1.9GiB ram, AMD Athlon 64 X2 dual core processor >> >> ginac 1.6.0 was installed with the standard install commands included >> in the install file >> ./configure >> make >> sudo make install >> make check >> >> all tests passed >> >> my terminal after I tried ldconfig looked like this. >> >> peter@peter-ubuntu:~$ man ldconfig >> peter@peter-ubuntu:~$ ldconfig >> /sbin/ldconfig.real: Can't create temporary cache file >> /etc/ld.so.cache~: Permission denied >> peter@peter-ubuntu:~$ cd Documents >> peter@peter-ubuntu:~/Documents$ gcc main.cpp -o main -lcln -lginac >> peter@peter-ubuntu:~/Documents$ ./main >> ./main: error while loading shared libraries: libginac.so.2: cannot >> open shared object file: No such file or directory >> >> For give me but prior to using this system all I did was a bit of >> darwin tinkering and before that MS-dos. I'm not too clear on the >> specifics of how linux handles it's libraries. >> >> Quoting "Richard B. Kreckel"<kreckel(a)ginac.de>: >> >> >>> You didn't tell us about your system or how and where you installed >>> the library. Buy maybe you do have to run ldconfig? >>> >>> -richy. >>> -- >>> Richard B. Kreckel >>> <http://www.ginac.de/~kreckel/> >>> _______________________________________________ >>> GiNaC-list mailing list >>> GiNaC-list(a)ginac.de >>> https://www.cebix.net/mailman/listinfo/ginac-list >>> >>> >> >> >> ---------------------------------------------------------------- >> This message was sent using IMP, the Internet Messaging Program. >> >> >> _______________________________________________ >> GiNaC-list mailing list >> GiNaC-list(a)ginac.de >> https://www.cebix.net/mailman/listinfo/ginac-list >> >> >> >> > > ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.

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Release 1.6.0
by Jens Vollinga 22 May '11

22 May '11

Hi everybody, GiNaC 1.6.0 is out and available. You can find the changes at the end of this email. Note: This release is not binary compatible to the previous one. Also, we changed the name of the library filename from libginac-1.5 to libginac. The ABI versioning is now done in recommended libtool manner. The dynamic library will be created as libginac.so.2.0.0 this time. We also stopped to create extra branches in the repository for ABI compatible versions. The latest releases will from now on always be in master. Changes: * Fixed compilation issues with clang. * Fixed compilation issues with VC++. * Fixed a segfault in fsolve() and improved its numerical algorithm. * Fixed several memory leaks in power::eval(). * Fixed the substitution algorithm that led to wrong results (exp(log(x))->x). * Fixed a bug in add:eval() (real_part() had returned wrong results). * Fixed infinite loop bug when unarchiving realsymbol and possymbol. * Fixed bugs in the GCD code. * Fixed empty string bug in symbol::get_name(). * Fixed bugs concerning STL vector sizes that can potentially cause segfaults. * Fixed a bug in is_polynomial(). * Removed autogen dependencies. * Improved simplify_indexed() algorithm. * Changed the connection between library version and package version. * power::series() can handle now more expressions with singularities in the exponent. * Added conjugate() methods to functions cosh, sinh, tanh. As always, this release can be downloaded from http://www.ginac.de/Download.html Best wishes, Jens

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