October 2020 - GiNaC-devel

GiNaC 1.8.0 released
by Richard B. Kreckel 15 Oct '20

15 Oct '20

Hi, GiNaC 1.8.0 has just been tagged. Here are the news: * New routines for the numerical evaluation of iterated integrals like elliptic multiple polylogarithms or iterated integrals of modular forms. * Stronger normalization methods for expressions with powers. Where this is safe, GiNaC now tries replacing various kinds of powers in order to find and cancel common subexpressions. * Improved CMake build. Stay healthy, and happy hacking! -richy. -- Richard B. Kreckel <https://in.terlu.de/~kreckel/>

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[SCM] GiNaC -- a C++ library for symbolic computations tag, release_1-8-0, created. release_1-4-0-702-g0ba4e319
by Richard B. Kreckel 15 Oct '20

15 Oct '20

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 tag, release_1-8-0 has been created at 0ba4e319079c68d97bb307f6e8c8779eea7f4131 (commit) - Log ----------------------------------------------------------------- commit 0ba4e319079c68d97bb307f6e8c8779eea7f4131 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed Oct 14 23:16:08 2020 +0200 build: Fix CMake install for info file. It seams like CMake does not know any variable named ${SHARE_INSTALL_PREFIX}. ----------------------------------------------------------------------- hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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CMake improvements
by Alexey Sheplyakov 14 Oct '20

14 Oct '20

Hi! The patchset at https://github.com/asheplyakov/ginac/tree/cmake (git pull git://github.com/asheplyakov/ginac.git cmake) makes it a bit easier to build and use GiNaC with CMake. In particular 1) one can build both GiNaC and CLN in one pass (without having to make install, figure out CFLAGS, LD_LIBRARY_PATH, etc): git clone -b cmake git://github.com/asheplyakov/ginac.git cd ginac git clone -b cmake git://github.com/asheplyakov/cln.git mkdir build && cd build cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo .. make -j4 2) GiNaC can be included as CMake subproject: That is, to compile a program `derivative.cpp` (which uses GiNaC) one can download GiNaC sources into the `ginac` subdirectory (and CLN into ginac/cln subdirectory), and use the following CMakeLists.txt project(derivative) add_subdirectory(ginac) add_executable(derivative derivative.cpp) target_link_libraries(derivative ginac::ginac) # this adds both libraries and includes/defines 3) Targets are exported, so `find_package(ginac REQUIRED 1.7.0)` works "out of the box" (this requires CMake'ified CLN) Best regards, Alexey

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-702-g0ba4e319
by Richard B. Kreckel 14 Oct '20

14 Oct '20

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 0ba4e319079c68d97bb307f6e8c8779eea7f4131 (commit) via 3ee690de0c65f18efebdac96c0c82c7551654d2f (commit) via 0b39999b706904d977d8d498e3b01796fb789371 (commit) from 3b707b18be4d043c800583e7ff448513658fec5a (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 0ba4e319079c68d97bb307f6e8c8779eea7f4131 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed Oct 14 23:16:08 2020 +0200 build: Fix CMake install for info file. It seams like CMake does not know any variable named ${SHARE_INSTALL_PREFIX}. commit 3ee690de0c65f18efebdac96c0c82c7551654d2f Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed Oct 14 23:15:05 2020 +0200 Finalize 1.8.0 release. commit 0b39999b706904d977d8d498e3b01796fb789371 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed Oct 14 20:12:37 2020 +0200 Clarify types of test suite files. ----------------------------------------------------------------------- Summary of changes: NEWS | 8 ++++++++ check/CMakeLists.txt | 22 ++++++++++++++-------- check/FILES | 8 ++++++++ check/Makefile.am | 46 +++++++++++++++++++++++----------------------- doc/CMakeLists.txt | 2 +- 5 files changed, 54 insertions(+), 32 deletions(-) create mode 100644 check/FILES 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_1-4-0-699-g3b707b18
by Stefan Weinzierl 13 Oct '20

13 Oct '20

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 3b707b18be4d043c800583e7ff448513658fec5a (commit) from f8a7b29478ddd62ed8345dc8aa332fc083260821 (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 3b707b18be4d043c800583e7ff448513658fec5a Author: Stefan Weinzierl <weinzierl(a)uni-mainz.de> Date: Tue Oct 13 14:51:24 2020 +0200 Replaced dummy reference by correct reference. ----------------------------------------------------------------------- Summary of changes: doc/tutorial/ginac.texi | 2 +- ginac/inifcns_elliptic.cpp | 4 ++-- 2 files changed, 3 insertions(+), 3 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_1-4-0-698-gf8a7b294
by Richard B. Kreckel 13 Oct '20

13 Oct '20

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 f8a7b29478ddd62ed8345dc8aa332fc083260821 (commit) from 13905769fe865764a271f0e2aeb22f422e1289d7 (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 f8a7b29478ddd62ed8345dc8aa332fc083260821 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Mon Oct 12 20:42:49 2020 +0200 Rename test suite files... ...to match any of the three types: exam* test result for specific input (like a pupil's exam) check* test coherence of results among each other, for random input time* measure run-time All tests are still there, but maybe elsewhere: * rename match_bug.cpp => exam_match.cpp * rename heur_gcd_bug.cpp => exam_heur_gcd.cpp * rename bugme_chinrem_gcd.cpp => exam_chinrem_gcd.cpp * rename parser_bugs.cpp => exam_parser.cpp * rename exam_cra.cpp => check_cra.cpp * include numeric_archive.cpp => exam_archive.cpp * include pgcd_infinite_loop.cpp => exam_pgcd.cpp * include pgcd_relatively_prime_bug.cpp => exam_pgcd.cpp These two have been deleted, since memory leaks are best looked for using tools on real programs on a regular basis (they were also not automatically executed): * delete parser_memleak.cpp * delete mul_eval_memleak.cpp ----------------------------------------------------------------------- Summary of changes: check/.gitignore | 22 ++-- check/CMakeLists.txt | 15 +-- check/Makefile.am | 56 +++++----- check/{exam_cra.cpp => check_cra.cpp} | 0 check/exam_archive.cpp | 49 ++++++++- ...{bugme_chinrem_gcd.cpp => exam_chinrem_gcd.cpp} | 4 +- check/{heur_gcd_bug.cpp => exam_heur_gcd.cpp} | 4 +- check/{match_bug.cpp => exam_match.cpp} | 4 +- check/{parser_bugs.cpp => exam_parser.cpp} | 44 ++++---- check/exam_pgcd.cpp | 68 ++++++++++++ check/mul_eval_memleak.cpp | 119 --------------------- check/numeric_archive.cpp | 68 ------------ check/parser_memleak.cpp | 57 ---------- check/pgcd_infinite_loop.cpp | 41 ------- check/pgcd_relatively_prime_bug.cpp | 31 ------ 15 files changed, 183 insertions(+), 399 deletions(-) rename check/{exam_cra.cpp => check_cra.cpp} (100%) rename check/{bugme_chinrem_gcd.cpp => exam_chinrem_gcd.cpp} (98%) rename check/{heur_gcd_bug.cpp => exam_heur_gcd.cpp} (93%) rename check/{match_bug.cpp => exam_match.cpp} (97%) rename check/{parser_bugs.cpp => exam_parser.cpp} (73%) create mode 100644 check/exam_pgcd.cpp delete mode 100644 check/mul_eval_memleak.cpp delete mode 100644 check/numeric_archive.cpp delete mode 100644 check/parser_memleak.cpp delete mode 100644 check/pgcd_infinite_loop.cpp delete mode 100644 check/pgcd_relatively_prime_bug.cpp hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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upcoming release
by Richard B. Kreckel 11 Oct '20

11 Oct '20

Dear folks, Judging from the considerable number of citations in high-energy preprints, GiNaC's multiple polylogarithms are widely and successfully used in this community. Together with Moriz Walden, Stefan Weinzierl has now prepared routines for computing "elliptic multiple polylogarithms" as the next level of sophistication for computations of this type. The intend is to add these functions to GiNaC in the days ahead and then do a new release. Stefan has been granted write access to the repo on www.ginac.de. Happy hacking! -richy. -- Richard B. Kreckel <https://in.terlu.de/~kreckel/>

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-697-g13905769
by Richard B. Kreckel 11 Oct '20

11 Oct '20

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 13905769fe865764a271f0e2aeb22f422e1289d7 (commit) via a6af5fc29d24dbdd73fbb80bf4e0ec1e577a5eb1 (commit) via 9d9503cff68b40c4c5f6a2f9eb7ae9b32c53a486 (commit) via 88cb1bc239cf2e52038a5111ba39117ce23093bb (commit) from 394dfa78f82933e1902376180291770905ec7ea1 (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 13905769fe865764a271f0e2aeb22f422e1289d7 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Sun Oct 11 19:08:19 2020 +0200 Reset GINAC_LT_AGE to bump SONAME. Vladimir's last changes affected virtual functions and vtbl changes usually require a new library version. commit a6af5fc29d24dbdd73fbb80bf4e0ec1e577a5eb1 Author: Vladimir V. Kisil <V.Kisilv(a)leeds.ac.uk> Date: Sun Oct 11 19:03:30 2020 +0200 [PATCH 3/3] Stronger normalisation method for powers. Now normalisation method try to express powers with the same base as monomials of some dummy variables. This allows to make cancellations of the sort: (x-1)/(sqrt(x)-1) -> sqrt(x)+1 Signed-off-by: Vladimir V. Kisil <V.Kisilv(a)leeds.ac.uk> commit 9d9503cff68b40c4c5f6a2f9eb7ae9b32c53a486 Author: Vladimir V. Kisil <V.Kisilv(a)leeds.ac.uk> Date: Sun Oct 11 18:44:48 2020 +0200 [PATCH 2/3] Make a stronger normalisation for expressions with exponents. If several exponents have arguments different by a rational number factors they are replaced by monomials of the same variable. Signed-off-by: Vladimir V. Kisil <V.Kisilv(a)leeds.ac.uk> commit 88cb1bc239cf2e52038a5111ba39117ce23093bb Author: Vladimir V. Kisil <V.Kisilv(a)leeds.ac.uk> Date: Sun Oct 11 18:33:32 2020 +0200 [PATCH 1/3] Automatic evaluation of (e^t)^s = e^(ts). If it safe to evaluate (e^t)^s = e^(ts) at least in two cases: a) t and s are reals, the respective formula can be found in any analysis textbook. b) if s is an integer, then the ambiguity of t up to the term 2*Pi*k does not cause a different value. Signed-off-by: Vladimir V. Kisil <kisilv(a)maths.leeds.ac.uk> ----------------------------------------------------------------------- Summary of changes: check/exam_misc.cpp | 24 +++++ check/exam_normalization.cpp | 89 ++++++++++++++++ ginac/add.h | 2 +- ginac/basic.h | 2 +- ginac/inifcns_trans.cpp | 19 ++++ ginac/mul.h | 2 +- ginac/normal.cpp | 245 +++++++++++++++++++++++++++++++++++++------ ginac/numeric.h | 2 +- ginac/power.h | 2 +- ginac/pseries.h | 2 +- ginac/structure.h | 2 +- ginac/symbol.h | 2 +- ginac/version.h | 2 +- 13 files changed, 352 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_1-4-0-693-g394dfa78
by Richard B. Kreckel 10 Oct '20

10 Oct '20

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 394dfa78f82933e1902376180291770905ec7ea1 (commit) from 71fdb941e62f5e4bf131bc40468cfa7a4a5c986a (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 394dfa78f82933e1902376180291770905ec7ea1 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Sat Oct 10 21:37:35 2020 +0200 Update AUTHORS file more. ----------------------------------------------------------------------- Summary of changes: AUTHORS | 1 + 1 file changed, 1 insertion(+) 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_1-4-0-692-g71fdb941
by Richard B. Kreckel 10 Oct '20

10 Oct '20

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 71fdb941e62f5e4bf131bc40468cfa7a4a5c986a (commit) from 74bc832973cda4204e349396c9f4f7d056f16366 (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 71fdb941e62f5e4bf131bc40468cfa7a4a5c986a Author: Richard Kreckel <kreckel(a)ginac.de> Date: Sat Oct 10 21:35:05 2020 +0200 Set version, soname ahead of release. ----------------------------------------------------------------------- Summary of changes: ginac/version.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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