- GiNaC-devel - ginac.de

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-593-g4ffb3cbb
by git＠ginac.de 24 Jan '18

24 Jan '18

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 4ffb3cbb3ab5f642e461bcbf8fb29743752c5d58 (commit) from 51c4b683827bc6fc427cb5c8ca789a4c9465e021 (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 4ffb3cbb3ab5f642e461bcbf8fb29743752c5d58 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed Jan 24 22:37:24 2018 +0100 Speed up special cases of square-free factorization. Square-free factorization of polynomials containing a factor which is a high power P of a symbol x did scale like O(P) in space and time. This patch introduces a shortcut in Yun's algorithm, such that the computation is only O(1) in space and time. This makes it possible to compute, say sqrfree(x^P + x^(P+1)) => (1+x)*x^P with P=123456789. Found this to be a bottleneck while debugging one of Vitaly Magerya's examples. ----------------------------------------------------------------------- Summary of changes: ginac/normal.cpp | 78 +++++++++++++++++++++++++++++--------------------------- 1 file changed, 40 insertions(+), 38 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

1 0

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-592-g51c4b68
by git＠ginac.de 01 Jan '18

01 Jan '18

1 0

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-590-g630db9a
by git＠ginac.de 29 Dec '17

29 Dec '17

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 630db9a0b00d4729e80a5f9eec69feec85dfbc59 (commit) from f039398998db24260a3bd2841347ae03422024c7 (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 630db9a0b00d4729e80a5f9eec69feec85dfbc59 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Fri Dec 29 22:16:54 2017 +0100 [BUGFIX] Speed up some cases of polynomial factorization. Speed up a naive O(N) modulus operation in multivar_diophant(). This loop caused some polynomials to seemingly hang forever. ----------------------------------------------------------------------- Summary of changes: ginac/factor.cpp | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

1 0

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-589-gf039398
by git＠ginac.de 18 Dec '17

18 Dec '17

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 f039398998db24260a3bd2841347ae03422024c7 (commit) via 131d527194c15034422a0caf740bdf5a68689aea (commit) from f62443c1f2c678be0b6ff6ce58618f6e3b4cdfa8 (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 f039398998db24260a3bd2841347ae03422024c7 Author: Vitaly Magerya <vmagerya(a)gmail.com> Date: Mon Dec 18 19:28:01 2017 +0100 Do not expand pre-factored polynomials. See <https://www.ginac.de/pipermail/ginac-list/2017-December/002155.html>. commit 131d527194c15034422a0caf740bdf5a68689aea Author: Richard Kreckel <kreckel(a)ginac.de> Date: Mon Dec 18 19:19:34 2017 +0100 Minor sreamlining of some internal code using class lst... ...without any external effect at all. ----------------------------------------------------------------------- Summary of changes: ginac/factor.cpp | 108 +++++++++++++++++++++++++++++++------------------------ 1 file changed, 61 insertions(+), 47 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

1 0

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-587-gf62443c
by git＠ginac.de 12 Sep '17

12 Sep '17

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 f62443c1f2c678be0b6ff6ce58618f6e3b4cdfa8 (commit) via c3acaef24f0ac4c9024e0a116ce9249e46472624 (commit) from ac58816ee70e2f9e8d863f3869ce512a4009ddc9 (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 f62443c1f2c678be0b6ff6ce58618f6e3b4cdfa8 Author: Vladimir V. Kisil <kisilv(a)maths.leeds.ac.uk> Date: Tue Sep 12 23:07:59 2017 +0200 Add LaTeX pretty-print for function derivatives. commit c3acaef24f0ac4c9024e0a116ce9249e46472624 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Tue Sep 12 22:32:20 2017 +0200 Update m4/ax_cxx_compile_stdcxx.m4 to current upstream version. ----------------------------------------------------------------------- Summary of changes: ginac/fderivative.cpp | 18 ++ ginac/fderivative.h | 1 + m4/ax_cxx_compile_stdcxx.m4 | 464 +++++++++++++++++++++++++++++++++++++++++--- 3 files changed, 461 insertions(+), 22 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

1 0

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-585-gac58816
by git＠ginac.de 11 Sep '17

11 Sep '17

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 ac58816ee70e2f9e8d863f3869ce512a4009ddc9 (commit) from 60dbeb45d93b9610c840eecc9b4d7f5a71f9ab5d (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 ac58816ee70e2f9e8d863f3869ce512a4009ddc9 Author: Vladimir V. Kisil <kisilv(a)maths.leeds.ac.uk> Date: Mon Sep 11 23:12:36 2017 +0200 [PATCH] Fix bug in evaluation of real and imaginary parts of powers. Be more careful when simplifying Re(a^c) -> a^c and Im(a^c) -> 0. Thanks to Jan Rheinländer for reporting this. ----------------------------------------------------------------------- Summary of changes: ginac/power.cpp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

1 0

Fix bug in evaluation of real and imaginary parts of powers
by Vladimir V. Kisil 09 Aug '17

09 Aug '17

Dear All, I am attaching a patch fixing the bug in evaluation of real and imaginary parts of powers. Best wishes, Vladimir -- Vladimir V. Kisil http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://goo.gl/EaG2Vu Software: Geometry of cycles http://moebinv.sourceforge.net/

1 0

LaTeX pretty-print for function derivatives
by Vladimir V. Kisil 09 Aug '17

09 Aug '17

Dear All, I propose a patch for LaTeX pretty-print of function derivatives. Best wishes, Vladimir -- Vladimir V. Kisil http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://goo.gl/EaG2Vu Software: Geometry of cycles http://moebinv.sourceforge.net/

1 0

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-584-g60dbeb4
by git＠ginac.de 17 Jul '17

17 Jul '17

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 60dbeb45d93b9610c840eecc9b4d7f5a71f9ab5d (commit) via 7c8f8dae79ccf891b56167d75b73e1fd73937a6d (commit) from 26e9e289dd5e4f0790ee687d56db41b95dfe98f7 (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 60dbeb45d93b9610c840eecc9b4d7f5a71f9ab5d Author: Vladimir V. Kisil <kisilv(a)maths.leeds.ac.uk> Date: Mon Jul 17 09:37:21 2017 +0200 Introducing method symbol::get_TeX_name() to match existing symbol::get_name(). Signed-off-by: Vladimir V. Kisil <kisilv(a)maths.leeds.ac.uk> commit 7c8f8dae79ccf891b56167d75b73e1fd73937a6d Author: Vladimir V. Kisil <kisilv(a)maths.leeds.ac.uk> Date: Mon Jul 17 09:35:40 2017 +0200 Fix excessive backslashes in the LaTeX function names. Signed-off-by: Vladimir V. Kisil <kisilv(a)maths.leeds.ac.uk> ----------------------------------------------------------------------- Summary of changes: doc/tutorial/ginac.texi | 9 ++++++++- ginac/function.cppy | 4 ++-- ginac/symbol.cpp | 8 ++++++++ ginac/symbol.h | 1 + 4 files changed, 19 insertions(+), 3 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

1 0

Patches for LaTeX output
by Vladimir V. Kisil 16 Jul '17

16 Jul '17

Dear All, I am attaching two small patches for LaTeX output. The first fixes typo in names of functions. The second introduces symbol::get_TeX_name() to match symbol::get_name(). Best wishes, Vladimir -- Vladimir V. Kisil http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://goo.gl/EaG2Vu Software: Geometry of cycles http://moebinv.sourceforge.net/

1 0