August 2013 - GiNaC-devel

Simplifying powers
by Vladimir V. Kisil 25 Sep '13

25 Sep '13

Dear All, The method power::eval() contains the following rules: // ^(*(...,x;c1),c2) -> *(^(*(...,x;1),c2),c1^c2) (c1, c2 numeric(), c1>0) // ^(*(...,x;c1),c2) -> *(^(*(...,x;-1),c2),(-c1)^c2) (c1, c2 numeric(), c1<0) Is there a good reason why c1 here shall be numeric? Cannot we simply check the positive/negative info flag for c1 for that simplification? Shall I prepare a patch for this? Currently we have: possymbol n("n"), m("m"); cout << "e=" << pow(pow(n,2),half) << endl; // -> n cout << "e=" << pow(pow(n*m,2),half) << endl; // -> sqrt(m^2*n^2) Best wishes, Vladimir -- Vladimir V. Kisil email: kisilv(a)maths.leeds.ac.uk www: http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://www.worldscientific.com/worldscibooks/10.1142/p835

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AArch64 support.
by Christopher Meng 26 Aug '13

26 Aug '13

Hi, Due to this bug: https://bugzilla.redhat.com/show_bug.cgi?id=925420 Can upstream update some files to match our requirement? Thanks. Yours sincerely, Christopher Meng Always playing in Fedora Project http://cicku.me

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-392-gd266da8
by git＠ginac.de 11 Aug '13

11 Aug '13

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 d266da8d47161d02ddd068f7f5b9acfabe92a192 (commit) from b28ad5c0535bed79bf6549f25faf071be842ac21 (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 d266da8d47161d02ddd068f7f5b9acfabe92a192 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Sun Aug 11 13:16:15 2013 +0200 [build] fix ginsh build for automake <=1.11. automake <=1.11 and automake >=1.12 have different conventions for naming C++ header files made by yacc. To work with both, we write our own rule rather than using automake's. ----------------------------------------------------------------------- Summary of changes: configure.ac | 4 ++-- ginsh/Makefile.am | 8 ++++++-- ginsh/ginsh_parser.ypp | 2 +- 3 files changed, 9 insertions(+), 5 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_1-4-0-391-gb28ad5c
by git＠ginac.de 11 Aug '13

11 Aug '13

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 b28ad5c0535bed79bf6549f25faf071be842ac21 (commit) from 8ed95601ab0cff1bb02b2a908e5a2c118b1f0a06 (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 b28ad5c0535bed79bf6549f25faf071be842ac21 Author: Alexei Sheplyakov <Alexei.Sheplyakov(a)gmail.com> Date: Sun Aug 11 09:59:53 2013 +0300 [build] auto* tools based build: fix `make dist'. ----------------------------------------------------------------------- Summary of changes: ginac/Makefile.am | 2 +- 1 files changed, 1 insertions(+), 1 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_1-4-0-379-gbf0d265
by git＠ginac.de 08 Aug '13

08 Aug '13

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 bf0d26572edecc37d98aec715e14fbd71a8c0315 (commit) via 0289100f425e420da988a709cd52616b6d69d348 (commit) via a06a27122b0a9087e9c64743940016c7e0176ce2 (commit) via eded9cd9d5df793c1ea5a1f766eff261ded46bde (commit) via e0f0681b814fecff5523d21b4368ebbeecc330eb (commit) via f282e2b3a3873619006b6ffd3fa7fe65010c1299 (commit) via a2314765ecb37b89ce5ab0d5491e58b6ac550b73 (commit) from e5eeee53d814cedc12cd725e76b0eb87859cdd77 (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 bf0d26572edecc37d98aec715e14fbd71a8c0315 Author: Alexei Sheplyakov <Alexei.Sheplyakov(a)gmail.com> Date: Tue May 31 02:50:01 2011 +0300 [build] GiNaC can be built with CMake now. Known issues: * no make dist * no make install-pdf commit 0289100f425e420da988a709cd52616b6d69d348 Author: Alexei Sheplyakov <Alexei.Sheplyakov(a)gmail.com> Date: Thu Feb 23 22:20:44 2012 +0200 [build] Move library version info into the version.h file. The point is to have this info easily available for both build systems. commit a06a27122b0a9087e9c64743940016c7e0176ce2 Author: Alexei Sheplyakov <Alexei.Sheplyakov(a)gmail.com> Date: Tue Jan 10 08:48:29 2012 +0300 [build] Rewrite ginsh related sed scripts in python. This makes build scripts more portable and human readable. commit eded9cd9d5df793c1ea5a1f766eff261ded46bde Author: Alexei Sheplyakov <Alexei.Sheplyakov(a)gmail.com> Date: Sun May 29 17:15:42 2011 +0300 [build] Move archive version info into version.h (for non autotools build). The canonical location for all version info is the ginac/version.h file now (so we can have two build systems without duplicating the version info in configure.ac and CMakeLists.txt). commit e0f0681b814fecff5523d21b4368ebbeecc330eb Author: Alexei Sheplyakov <Alexei.Sheplyakov(a)gmail.com> Date: Sun May 29 16:27:49 2011 +0300 [build] Define package version number in version.h (for non autotools build). commit f282e2b3a3873619006b6ffd3fa7fe65010c1299 Author: Alexei Sheplyakov <Alexei.Sheplyakov(a)gmail.com> Date: Sun May 29 16:18:39 2011 +0300 [build] include config.h conditionally to not break non-autotools build. commit a2314765ecb37b89ce5ab0d5491e58b6ac550b73 Author: Alexei Sheplyakov <Alexei.Sheplyakov(a)gmail.com> Date: Sun May 29 15:26:37 2011 +0300 Convert function.pl into C++ (well, almost) source and header. The code is much more readable now, as it's (almost) plain C++ (except simple pythonic `preprocessor' instructions). As a side effect perl is no longer necessary for building GiNaC. ----------------------------------------------------------------------- Summary of changes: CMakeLists.txt | 177 +++++ INSTALL | 2 +- INSTALL.CMake | 64 ++ acinclude.m4 | 18 + check/CMakeLists.txt | 94 +++ cmake/modules/FindCLN.cmake | 118 ++++ cmake/modules/FindGiNaC.cmake | 157 +++++ cmake/modules/FindReadline.cmake | 49 ++ config.cmake.in | 5 + configure.ac | 61 +-- doc/CMakeLists.txt | 63 ++ doc/examples/CMakeLists.txt | 1 + doc/reference/CMakeLists.txt | 40 ++ doc/tutorial/CMakeLists.txt | 59 ++ doc/tutorial/version.texi.cmake | 2 + ginac.pc.cmake | 11 + ginac/CMakeLists.txt | 176 +++++ ginac/Makefile.am | 14 +- ginac/archive.cpp | 11 +- ginac/function.cppy | 827 ++++++++++++++++++++++ ginac/function.hppy | 277 ++++++++ ginac/function.pl | 1416 -------------------------------------- ginac/function.py | 35 + ginac/numeric.cpp | 2 + ginac/version.h | 92 +++ ginac/version.h.in | 43 -- ginsh/CMakeLists.txt | 66 ++ ginsh/Makefile.am | 10 +- ginsh/ginsh_fcn_help.py | 63 ++ ginsh/ginsh_fcn_help.sed | 33 - ginsh/ginsh_lexer.ll | 2 + ginsh/ginsh_op_help.py | 54 ++ ginsh/ginsh_op_help.sed | 18 - ginsh/ginsh_parser.yy | 11 +- scripts/yaptu.py | 93 +++ tools/CMakeLists.txt | 7 + 36 files changed, 2594 insertions(+), 1577 deletions(-) create mode 100644 CMakeLists.txt create mode 100644 INSTALL.CMake create mode 100644 check/CMakeLists.txt create mode 100644 cmake/modules/FindCLN.cmake create mode 100644 cmake/modules/FindGiNaC.cmake create mode 100644 cmake/modules/FindReadline.cmake create mode 100644 config.cmake.in create mode 100644 doc/CMakeLists.txt create mode 100644 doc/examples/CMakeLists.txt create mode 100644 doc/reference/CMakeLists.txt create mode 100644 doc/tutorial/CMakeLists.txt create mode 100644 doc/tutorial/version.texi.cmake create mode 100644 ginac.pc.cmake create mode 100644 ginac/CMakeLists.txt create mode 100644 ginac/function.cppy create mode 100644 ginac/function.hppy delete mode 100644 ginac/function.pl create mode 100755 ginac/function.py create mode 100644 ginac/version.h delete mode 100644 ginac/version.h.in create mode 100644 ginsh/CMakeLists.txt create mode 100755 ginsh/ginsh_fcn_help.py delete mode 100644 ginsh/ginsh_fcn_help.sed create mode 100755 ginsh/ginsh_op_help.py delete mode 100644 ginsh/ginsh_op_help.sed create mode 100644 scripts/yaptu.py create mode 100644 tools/CMakeLists.txt hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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More rules to mul::info()
by Vladimir V. Kisil 02 Aug '13

02 Aug '13

Dear All, Looking into flags (as Alexei suggested) I noticed, that GiNaC is not aware about a product of two negative entries to be positive. I am attaching a patch to amend this. Best wishes, Vladimir -- Vladimir V. Kisil email: kisilv(a)maths.leeds.ac.uk www: http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://www.worldscientific.com/worldscibooks/10.1142/p835

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-390-g8ed9560
by git＠ginac.de 02 Aug '13

02 Aug '13

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 8ed95601ab0cff1bb02b2a908e5a2c118b1f0a06 (commit) from 8bd8cedd086aeaf08630d5357af37151e1d06d06 (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 8ed95601ab0cff1bb02b2a908e5a2c118b1f0a06 Author: Vladimir V. Kisil <kisilv(a)maths.leeds.ac.uk> Date: Mon Jul 29 17:25:25 2013 +0100 improve mul::info(): the product of two negative terms is positive, ... ... and the product of a positive and non-negative terms is non-negative. ----------------------------------------------------------------------- Summary of changes: ginac/mul.cpp | 54 ++++++++++++++++++++++++++++++++++++++++++------------ 1 files changed, 42 insertions(+), 12 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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Function::info (preliminary patch)
by Vladimir V. Kisil 02 Aug '13

02 Aug '13

Dear All, Many operations in GiNaC relay on the info provided by an object. However, functions answered negatively to anything so far, thus many simplifications was not possible or introduced in GiNaC code manually. I propose to add info() method to functions. The attached preliminary patch provides info for conjugate() and abs() functions. If the idea will be approved in general, I can try to add info methods to as many functions as I can. Best wishes, Vladimir -- Vladimir V. Kisil email: kisilv(a)maths.leeds.ac.uk www: http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://www.worldscientific.com/worldscibooks/10.1142/p835

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Improvements to function abs and power::info
by Vladimir V. Kisil 01 Aug '13

01 Aug '13

Dear All, I propose a tiny patch, which shall improve evaluation in GiNaC. abs() now can evaluate conjugates and step function. Power with real base and even-integer exponents reports that it is non-negative. Best wishes, -- Vladimir V. Kisil email: kisilv(a)maths.leeds.ac.uk www: http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://www.worldscientific.com/worldscibooks/10.1142/p835

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