- GiNaC-devel - ginac.de

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-473-ge0a84a3
by git＠ginac.de 17 Dec '15

17 Dec '15

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 e0a84a395ab1bf84813eea95fde9c8a361dae9bc (commit) via 83b067d5b1a232b56039f227a9445cea3dd3225a (commit) from 2639812c0ba4e1f9620660bbba1f12bf5b865e29 (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 e0a84a395ab1bf84813eea95fde9c8a361dae9bc Author: Richard Kreckel <kreckel(a)ginac.de> Date: Thu Dec 17 22:57:04 2015 +0100 include <algorithm> for use of std::min(). Thanks to Jan Rheinländer for reporting this. Cherry-picked from a56196f3. commit 83b067d5b1a232b56039f227a9445cea3dd3225a Author: Richard Kreckel <kreckel(a)ginac.de> Date: Thu Dec 17 22:30:13 2015 +0100 [bugfix] Make sure add::eval() collects all numeric terms *correctly*. This fixes a bug introduced with in 2010 with 89d5356b. ----------------------------------------------------------------------- Summary of changes: check/exam_cra.cpp | 1 + check/exam_paranoia.cpp | 20 +++++++++++++++----- ginac/add.cpp | 4 ++-- ginac/polynomial/mod_gcd.cpp | 1 + 4 files changed, 19 insertions(+), 7 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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MSVC 18
by Jan Rheinländer 17 Dec '15

17 Dec '15

Hi, I successfully compiled GiNaC (and CLN) with MSVC 18.00.31101 (Visual Studio 2013). All the tests passed, but I had to patch two files: check/exam_cra.cpp ginac/polynomial/mod_gcd.cpp Both of these files require #include <algorithm> otherwise there is an error about 'min' not being a member of namespace std. Jan

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[SCM] GiNaC -- a C++ library for symbolic computations branch, c++11, updated. release_1-4-0-504-g82df718
by git＠ginac.de 16 Dec '15

16 Dec '15

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, c++11 has been updated via 82df718524319471d3a92fb051329aa8cd529c22 (commit) from 6c946d4c762f5a0d6a3b742f03556dd018d63886 (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 82df718524319471d3a92fb051329aa8cd529c22 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed Dec 16 22:02:25 2015 +0100 Merge some cosmetic patches. This is a collection of some minor optimizations and indentation fixes. ----------------------------------------------------------------------- Summary of changes: INSTALL | 4 +- doc/CodingStyle | 2 +- ginac/color.cpp | 8 +--- ginac/expairseq.cpp | 7 +--- ginac/expairseq.h | 6 +-- ginac/factor.cpp | 85 ++++++++++++++------------------------ ginac/function.cppy | 4 +- ginac/inifcns.cpp | 4 +- ginac/inifcns_trans.cpp | 8 +--- ginac/mul.cpp | 44 ++++++++++---------- ginac/normal.cpp | 74 ++++++++++++++++----------------- ginac/operators.cpp | 16 +++---- ginac/polynomial/collect_vargs.cpp | 2 +- ginac/power.cpp | 53 +++++++++++------------- ginac/pseries.cpp | 19 ++++----- 15 files changed, 149 insertions(+), 187 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[SCM] GiNaC -- a C++ library for symbolic computations branch, c++11, updated. release_1-4-0-503-g6c946d4
by git＠ginac.de 16 Dec '15

16 Dec '15

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, c++11 has been updated via 6c946d4c762f5a0d6a3b742f03556dd018d63886 (commit) via ae6c004bd31e02dda37357d74b641c101b116c73 (commit) from 65f2693a0948d1db0bc68d7656c64e1fed91c158 (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 6c946d4c762f5a0d6a3b742f03556dd018d63886 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed Dec 16 21:22:36 2015 +0100 Make .eval() evaluate top-level only. With the previous patch, some old workarounds have become unnecessary: If all expressions are evaluated, any object which is an aggregate of expressions will only ever have to evaluate the top level. As such, it has become pointless to evaluate child objects of an expression prior to doing its own term-rewriting. This patch removes the evaluation of children from all GiNaC objects. It also removes the now superfluous parameter 'level' of the eval methods. commit ae6c004bd31e02dda37357d74b641c101b116c73 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed Dec 16 13:00:30 2015 +0100 Make add::eval(), mul::eval() work without compromise. If a user asks to evaluate an object, the expectation is that the library returns an evaluated, canonical expression. Everything else is a bug. (It doesn't matter whether the user asks explicitly or by assigning to an ex.) It turns out that it was possible to construct objects which didn't fully evaluate. This patch fixes this by making eval() a little bit more careful. This obsoletes the need to go through combine_ex_with_coeff_to_pair() when constructing an epvector that is then used to construct an add or mul. (Alas, this was omitted frequently enough...) ----------------------------------------------------------------------- Summary of changes: check/exam_inifcns_nstdsums.cpp | 2 +- check/exam_paranoia.cpp | 64 ++++++++++++------------ check/exam_structure.cpp | 2 +- doc/tutorial/ginac.texi | 50 +++++++++---------- ginac/add.cpp | 33 ++++++------- ginac/add.h | 2 +- ginac/basic.cpp | 2 +- ginac/basic.h | 2 +- ginac/container.h | 32 ------------ ginac/ex.cpp | 2 +- ginac/ex.h | 6 +-- ginac/expairseq.cpp | 78 ++++++++++++----------------- ginac/expairseq.h | 4 +- ginac/factor.cpp | 2 - ginac/fderivative.cpp | 7 +-- ginac/fderivative.h | 2 +- ginac/function.cppy | 7 ++- ginac/function.hppy | 2 +- ginac/indexed.cpp | 6 +-- ginac/indexed.h | 2 +- ginac/inifcns_nstdsums.cpp | 2 +- ginac/integral.cpp | 22 +++------ ginac/integral.h | 2 +- ginac/matrix.cpp | 21 -------- ginac/matrix.h | 4 -- ginac/mul.cpp | 33 ++++++++----- ginac/mul.h | 2 +- ginac/ncmul.cpp | 17 +++---- ginac/ncmul.h | 2 +- ginac/normal.cpp | 8 +-- ginac/numeric.cpp | 4 +- ginac/numeric.h | 2 +- ginac/power.cpp | 107 ++++++++++++++++++---------------------- ginac/power.h | 2 +- ginac/pseries.cpp | 12 ++--- ginac/pseries.h | 2 +- ginac/relational.cpp | 11 ----- ginac/relational.h | 1 - ginac/structure.h | 2 +- ginac/symbol.h | 2 +- ginsh/ginsh_parser.ypp | 13 +---- 41 files changed, 225 insertions(+), 353 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[SCM] GiNaC -- a C++ library for symbolic computations branch, c++11, updated. release_1-4-0-501-g65f2693
by git＠ginac.de 01 Dec '15

01 Dec '15

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, c++11 has been updated via 65f2693a0948d1db0bc68d7656c64e1fed91c158 (commit) from 00d612ce3789ba9240ade1b8bf06b26c326bd8f2 (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 65f2693a0948d1db0bc68d7656c64e1fed91c158 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Mon Nov 30 23:06:53 2015 +0100 Improve method of setting status_flags::dynallocated. There seems to be no way to obsolete the need to mark an object derived from basic and handled by ex as being 'on the heap', at least none that doesn't have significant performance impact. Having said that, this patch aims at making this process simpler and more intuitive. Where, before, one would return from a function returning an ex with return (new mul(a, b))->setflag(status_flags::dynallocated); this patch lets us return with return dynallocate<mul>(a, b); which should be much clearer. In any case, it involves less typing. The two points where the status_flags::dynallocated are set are now * the dynallocate<B>(args...) template function and * the virtual duplicate() member functions. This patch rolls out the new functionality throughout the library. ----------------------------------------------------------------------- Summary of changes: check/exam_factor.cpp | 2 +- check/exam_mod_gcd.cpp | 2 +- ginac/add.cpp | 51 ++++++++------------ ginac/basic.cpp | 4 +- ginac/basic.h | 34 ++++++++++++- ginac/clifford.cpp | 53 ++++++++++----------- ginac/color.cpp | 10 ++-- ginac/ex.cpp | 25 ++-------- ginac/expairseq.cpp | 2 +- ginac/function.cppy | 3 +- ginac/idx.cpp | 13 +++-- ginac/indexed.cpp | 19 ++++---- ginac/inifcns.cpp | 2 +- ginac/inifcns_trans.cpp | 4 +- ginac/integral.cpp | 15 ++---- ginac/matrix.cpp | 28 +++++------ ginac/mul.cpp | 55 ++++++++++----------- ginac/ncmul.cpp | 41 +++++++--------- ginac/normal.cpp | 83 ++++++++++++++++---------------- ginac/numeric.cpp | 21 ++++---- ginac/operators.cpp | 8 ++-- ginac/parser/parse_binop_rhs.cpp | 14 +++--- ginac/polynomial/collect_vargs.cpp | 4 +- ginac/polynomial/divide_in_z_p.cpp | 2 +- ginac/polynomial/euclid_gcd_wrap.h | 2 +- ginac/power.cpp | 86 ++++++++++++++------------------- ginac/power.h | 4 +- ginac/pseries.cpp | 30 +++++------- ginac/registrar.h | 7 ++- ginac/relational.cpp | 4 +- ginac/symbol.h | 14 +++++- ginac/symmetry.cpp | 24 +++++----- ginac/tensor.cpp | 18 +++---- ginac/utils.cpp | 98 +++++++++++++++++++------------------- 34 files changed, 378 insertions(+), 404 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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Re: [GiNaC-devel] Base of natural logarithm
by Vladimir V. Kisil 29 Nov '15

29 Nov '15

On 28 Nov 2015 12:39, "Jan Rheinlander" <jrheinlaender(a)gmx.de> wrote: > Hi, > is there a way to create a ginac object "e" such that log(e) > automatically evaluates to 1? The following seems to work: ex e=exp(numeric(1)); std::cout << log(e) << std::endl; // -> 1.0 -- 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/

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[SCM] GiNaC -- a C++ library for symbolic computations branch, c++11, updated. release_1-4-0-500-g00d612c
by git＠ginac.de 29 Nov '15

29 Nov '15

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, c++11 has been updated via 00d612ce3789ba9240ade1b8bf06b26c326bd8f2 (commit) from cf1df9d3a828053f5cf07ae63afc2d7c31f1959e (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 00d612ce3789ba9240ade1b8bf06b26c326bd8f2 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Sun Nov 29 12:42:59 2015 +0100 Remove accidentally pushed binary. In commit 79cad108, a compiled binary from the test suite was accidentally added and pushed. Sorry. ----------------------------------------------------------------------- Summary of changes: check/exam_matrices | Bin 3540520 -> 0 bytes 1 file changed, 0 insertions(+), 0 deletions(-) delete mode 100755 check/exam_matrices hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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[SCM] GiNaC -- a C++ library for symbolic computations branch, c++11, updated. release_1-4-0-499-gcf1df9d
by git＠ginac.de 29 Nov '15

29 Nov '15

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, c++11 has been updated via cf1df9d3a828053f5cf07ae63afc2d7c31f1959e (commit) via c6ead0d1f88d99b0d8cc99b2da8ef9e9c41a073f (commit) via 79cad1083c0ee300703bd2aff7220b2e666b42ef (commit) from 8f283de519668b70b2e675a7055c7f1bf7ba197c (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 cf1df9d3a828053f5cf07ae63afc2d7c31f1959e Author: Richard Kreckel <kreckel(a)ginac.de> Date: Sun Nov 29 12:33:59 2015 +0100 Rename array of precomputed data in test suite. Reason: C++17 may introduce a std::data<> template. Right now, the GCC 6.0 prerelease bails out at this code, when compiler with -std=c++17. <http://en.cppreference.com/w/cpp/iterator/data> commit c6ead0d1f88d99b0d8cc99b2da8ef9e9c41a073f Author: Richard Kreckel <kreckel(a)ginac.de> Date: Sat Nov 28 15:43:46 2015 +0100 Use neseted initializer lists to construct matrix objects. Add constructor of initializer_list<initializer_list<ex>> to matrix. Use this syntax where, previously, ctor from comma-separated list of elements was used. Deprecate the ctor from comma-separated list. Note: The output format '[[a,b],[c,d]]' and ginsh syntax are unchanged because lists are printed '{a,b,c}' and a matrix is not a list of lists. commit 79cad1083c0ee300703bd2aff7220b2e666b42ef Author: Richard Kreckel <kreckel(a)ginac.de> Date: Fri Nov 27 11:49:16 2015 +0100 [build] Update scripts for correct rpath for linking with CLN. Use up-to-date files from GNU gettext 0.19.6. ----------------------------------------------------------------------- Summary of changes: check/exam_archive.cpp | 2 +- check/exam_clifford.cpp | 69 +++++---- check/exam_indexed.cpp | 18 ++- check/exam_inifcns_nstdsums.cpp | 14 +- check/exam_inifcns_nstdsums.h | 2 +- check/exam_matrices | Bin 0 -> 3540520 bytes check/exam_matrices.cpp | 120 +++++++--------- check/time_lw_O.cpp | 93 ++++++------ config/config.rpath | 230 ++++++++++++++++++----------- doc/tutorial/ginac.texi | 51 ++++--- ginac/matrix.cpp | 65 +++++++-- ginac/matrix.h | 19 +-- m4/lib-ld.m4 | 87 ++++++----- m4/lib-link.m4 | 311 ++++++++++++++++++++++++++++------------ m4/lib-prefix.m4 | 91 ++++++++---- 15 files changed, 725 insertions(+), 447 deletions(-) create mode 100755 check/exam_matrices hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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Base of natural logarithm
by Jan Rheinländer 28 Nov '15

28 Nov '15

Hi, is there a way to create a ginac object "e" such that log(e) automatically evaluates to 1? I tried ex EulernumEvalf() { return numeric(cln::exp1()); } const constant Euler_number("Eulernum", EulernumEvalf, "e", domain::positive); Thanks! Jan

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-471-g2639812
by git＠ginac.de 26 Nov '15

26 Nov '15

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 2639812c0ba4e1f9620660bbba1f12bf5b865e29 (commit) from 27213d158e5ec4b606b4f4d0766bf75eeb18673f (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 2639812c0ba4e1f9620660bbba1f12bf5b865e29 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed Nov 25 11:28:10 2015 +0100 In power::expand_add(), don't reserve excess monomial sizes. There is no need to reserve n terms in each of the monomials of the result of power(+(x,y,z...;0),n): We can compute it exactly as the number of nonzero exponents in the multinomial expansion. The good thing is that this counting is the same for each composition of a partition, so it can be hoisted out of the loop over compositions. ----------------------------------------------------------------------- Summary of changes: ginac/power.cpp | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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