- GiNaC-devel - ginac.de

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-349-g89d1222
by git＠ginac.de 22 May '11

22 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 89d1222669c6fbfcf91b50120a042dbe7d73e35f (commit) from d8b5a1f3ff5a6b7e89f4dd00b92779f178089299 (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 89d1222669c6fbfcf91b50120a042dbe7d73e35f Author: Jens Vollinga <jensv(a)nikhef.nl> Date: Sun May 22 15:49:50 2011 +0200 Removed autogen stuff from the configuration. ----------------------------------------------------------------------- Summary of changes: configure.ac | 6 ------ 1 files changed, 0 insertions(+), 6 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_1-4-0-348-gd8b5a1f
by git＠ginac.de 22 May '11

22 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 d8b5a1f3ff5a6b7e89f4dd00b92779f178089299 (commit) via f3b92d92e9b8ee71b189ddb2c7e27ed72b577732 (commit) via 116aa059418afd8f6a36ffa9084ebcd858a5ab0f (commit) from 56bbb99adc43dad22ee615380d4446a87b713cb8 (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 d8b5a1f3ff5a6b7e89f4dd00b92779f178089299 Author: Alexei Sheplyakov <alexei.sheplyakov(a)gmail.com> Date: Sun May 22 15:17:35 2011 +0300 Update the supported platforms/compilers list. commit f3b92d92e9b8ee71b189ddb2c7e27ed72b577732 Author: Alexei Sheplyakov <alexei.sheplyakov(a)gmail.com> Date: Sun May 22 15:15:42 2011 +0300 Parser: don't bother to generate 3 (C++) functions with autogen. commit 116aa059418afd8f6a36ffa9084ebcd858a5ab0f Author: Alexei Sheplyakov <alexei.sheplyakov(a)gmail.com> Date: Sun May 22 15:15:07 2011 +0300 Fix a typo in the GCD testcase. ----------------------------------------------------------------------- Summary of changes: INSTALL | 23 +++--- check/bugme_chinrem_gcd.cpp | 4 +- ginac/Makefile.am | 19 +----- ginac/parser/builtin_fcns.def | 14 ---- .../{default_reader.tpl => default_reader.cpp} | 72 +++++++++++-------- 5 files changed, 57 insertions(+), 75 deletions(-) delete mode 100644 ginac/parser/builtin_fcns.def rename ginac/parser/{default_reader.tpl => default_reader.cpp} (61%) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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infinite loop in simplify_indexed()
by PG CLARK 21 May '11

21 May '11

I've finally tracked down the source of my troubles in getting the little program I've been working on to run and I'm 99% convinced it's a bug in the library. Please take a look at this brief sample program I wrote that illustrates the problem. #include <iostream> #include <ginac/ginac.h> using namespace std; using namespace GiNaC; int main() { symbol i_sym("i"), j_sym("j"), k_sym("k"), l_sym("l"), m_sym("m"), n_sym("n"); idx i(i_sym, 2), j(j_sym, 2), k(k_sym, 2), l(l_sym, 2), m(m_sym, 2), n(n_sym, 2); symbol alpha_sym("\\alpha"), beta_sym("\\beta"), gamma_sym("\\gamma"); idx Va(alpha_sym, 3), Vb(beta_sym, 3), Vg(gamma_sym, 3); symbol U("U"), v("v"), h("h"); exvector IJKLMNVec; idx IJKLMNIA[] ={i, j, k, l, m, n}; IJKLMNVec.assign (IJKLMNIA,IJKLMNIA+6); ex myEx = (indexed(h, sy_symm(sy_none(0, 1), sy_none(2, 3),sy_none(4, 5)), IJKLMNVec)*indexed(U, i, Va)*indexed(v, j, Va)*indexed(U, k, Vb) *indexed(v, l, Vb)*indexed(U, m, Vg)*indexed(v, n, Vg)).simplify_indexed(); cout << myEx << endl; return 0; } You'll find it never terminates. simplify_indexed() has an infinite loop that was unanticipated caused by some rare forms of indexed expressions. This program will just run and run trapped in implify_indexed() and never print anything out. If a fix is not forthcoming any ideas for a work around? regards peter clark ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-345-g56bbb99
by git＠ginac.de 21 May '11

21 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 56bbb99adc43dad22ee615380d4446a87b713cb8 (commit) from f320e27e9cfe287168c879af5991babffaa1e9c8 (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 56bbb99adc43dad22ee615380d4446a87b713cb8 Author: Jens Vollinga <jensv(a)nikhef.nl> Date: Sat May 21 01:30:08 2011 +0200 Limiting the costly symmetrization tests inside simplify_indexed() to cases where at least one antisymmetric or cyclic non-free index is involved. Thanks to P.G.Clark for reporting the problem. ----------------------------------------------------------------------- Summary of changes: ginac/indexed.cpp | 37 +++++++++++++++++++++++-------------- ginac/symmetry.cpp | 12 ++++++++++++ ginac/symmetry.h | 2 ++ 3 files changed, 37 insertions(+), 14 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_1-4-0-344-gf320e27
by git＠ginac.de 20 May '11

20 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 f320e27e9cfe287168c879af5991babffaa1e9c8 (commit) from 0c2f0f4c6d4118e817c5b9a14a9d0f3ada82e9fe (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 f320e27e9cfe287168c879af5991babffaa1e9c8 Author: Jens Vollinga <jensv(a)nikhef.nl> Date: Fri May 20 23:30:38 2011 +0200 Changed naming convention for the library. Now, it is only libginac.so without the release version included (instead of libginac-1.5.so, for example). Since the previous commit broke the ABI, we are free to implement this long planned change now. ----------------------------------------------------------------------- Summary of changes: configure.ac | 6 ------ ginac/Makefile.am | 2 +- 2 files changed, 1 insertions(+), 7 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_1-4-0-343-g0c2f0f4
by git＠ginac.de 20 May '11

20 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 0c2f0f4c6d4118e817c5b9a14a9d0f3ada82e9fe (commit) from 293ff6f6fe89c3e5413c8da57feedf3bd2016cd7 (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 0c2f0f4c6d4118e817c5b9a14a9d0f3ada82e9fe Author: Richard Kreckel <kreckel(a)ginac.de> Date: Fri May 20 22:20:57 2011 +0200 Fixed a bug introduced in last commit. Before, sqrt(2)*x used to be a polynomial in x. Now, it is a polynomial in x again. ----------------------------------------------------------------------- Summary of changes: check/exam_paranoia.cpp | 14 ++++++++++---- ginac/add.cpp | 10 ++++++++++ ginac/add.h | 1 + ginac/expairseq.cpp | 22 ---------------------- ginac/expairseq.h | 1 - ginac/mul.cpp | 11 +++++++++++ ginac/mul.h | 1 + 7 files changed, 33 insertions(+), 27 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_1-4-0-342-g293ff6f
by git＠ginac.de 20 May '11

20 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 293ff6f6fe89c3e5413c8da57feedf3bd2016cd7 (commit) from c152ba30b2938b3e1fe6927574883eff08dae88e (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 293ff6f6fe89c3e5413c8da57feedf3bd2016cd7 Author: Jens Vollinga <jensv(a)nikhef.nl> Date: Fri May 20 13:55:35 2011 +0200 Fixed a bug in is_polynomial() that caused expressions like sqrt(x*x+1)*sqrt(x+1) to be wrongly identified as polynomials in x. Thanks to Florent Hivert for reporting. ----------------------------------------------------------------------- Summary of changes: check/exam_paranoia.cpp | 13 +++++++++++++ ginac/expairseq.cpp | 19 +++++++++++++++---- 2 files changed, 28 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_1-4-0-341-gc152ba3
by git＠ginac.de 20 May '11

20 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 c152ba30b2938b3e1fe6927574883eff08dae88e (commit) via 46e10827e1cb1888ab5419b16d3381d29161daa5 (commit) from ab1aedf73a5d062bf50ed1e740f38a4503d7fead (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 c152ba30b2938b3e1fe6927574883eff08dae88e Author: Jens Vollinga <jensv(a)nikhef.nl> Date: Fri May 20 11:54:27 2011 +0200 ./configure now gives more information/warnings about missing utilities. commit 46e10827e1cb1888ab5419b16d3381d29161daa5 Author: Jens Vollinga <jensv(a)nikhef.nl> Date: Thu May 19 10:29:14 2011 +0200 Avoiding a spurious missing ginac_parser.h error when doing a parallel build (make -j..). ----------------------------------------------------------------------- Summary of changes: acinclude.m4 | 8 +++++--- configure.ac | 21 +++++++++++++++++---- ginsh/Makefile.am | 2 +- 3 files changed, 23 insertions(+), 8 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_1-4-0-339-gab1aedf
by git＠ginac.de 19 May '11

19 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 ab1aedf73a5d062bf50ed1e740f38a4503d7fead (commit) from f9afb6aca6a971650dff63b11ca8c2ef18506690 (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 ab1aedf73a5d062bf50ed1e740f38a4503d7fead Author: Jens Vollinga <jensv(a)nikhef.nl> Date: Thu May 19 09:44:11 2011 +0200 The patch improves the run time at the expense of using more RAM in some situations. Please note: it doesn't improve the actual algorithm (iteration over all permutations). Thanks to Alexei Sheplyakov. ----------------------------------------------------------------------- Summary of changes: ginac/symmetry.cpp | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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expairseq::conjugate
by Burcin Erocal 15 May '11

15 May '11

Hi, the following problem (in Sage syntax) was reported to the Sage issue tracker [1]: ginsh - GiNaC Interactive Shell (ginac V1.5.8) <snip> > conjugate(I*sqrt(-3)); -I*sqrt(-3) [1] http://trac.sagemath.org/sage_trac/ticket/10964 The problem seems to be the expair::conjugate() method which is called from the conjugateepvector() function in expairseq.cpp. This function is called from the pseries class as well. So, moving the latter in the expairseq class to use the virtual functions recombine_pair_to_ex() etc. does not work. Any ideas for a clean solution to this? Thank you. Burcin

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