January 2016 - GiNaC-devel

[SCM] GiNaC -- a C++ library for symbolic computations branch, c++11, updated. release_1-4-0-525-g319c953
by git＠ginac.de 30 Jan '16

30 Jan '16

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 319c9533e12eba2449001c47545e3c3cf48c482f (commit) via 1a59d8a443e6156da26028e4b951c0d4a28b2b0e (commit) via 25b4d894b5b2f7f56fb49e62a7767ab969d5249f (commit) from ed914545e01d60ecf2544e6141d6c5142c01327f (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 319c9533e12eba2449001c47545e3c3cf48c482f Author: Richard Kreckel <kreckel(a)ginac.de> Date: Fri Jan 29 23:45:21 2016 +0100 [C++17] Remove inheritance from std::binary_function, std::unary_function. This inheritance is unneeded since C++11 and the two classes may be removed in C++-17. commit 1a59d8a443e6156da26028e4b951c0d4a28b2b0e Author: Richard Kreckel <kreckel(a)ginac.de> Date: Fri Jan 29 22:57:52 2016 +0100 [C++17] Replace std::bind2nd with a lambda. commit 25b4d894b5b2f7f56fb49e62a7767ab969d5249f Author: Richard Kreckel <kreckel(a)ginac.de> Date: Fri Jan 29 00:11:14 2016 +0100 Remove global variable max_recursion_level. With the removal of the last 'level' parameter, this variable has become obsolete. ----------------------------------------------------------------------- Summary of changes: doc/tutorial/ginac.texi | 6 +++--- ginac/basic.cpp | 3 --- ginac/basic.h | 2 -- ginac/clifford.cpp | 2 +- ginac/ex.h | 8 ++++---- ginac/expair.h | 6 +++--- ginac/hash_map.h | 2 +- ginac/indexed.cpp | 10 ++++++---- ginac/ptr.h | 3 +-- ginac/symmetry.cpp | 4 ++-- 10 files changed, 21 insertions(+), 25 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_1-4-0-522-ged91454
by git＠ginac.de 28 Jan '16

28 Jan '16

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 ed914545e01d60ecf2544e6141d6c5142c01327f (commit) via c12c8ec3c5cf0c75f061f6c52d04206277bbdcca (commit) from f8c2455fbbd34dbbfb72ac96eec0f45fd453bade (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 ed914545e01d60ecf2544e6141d6c5142c01327f Author: Richard Kreckel <kreckel(a)ginac.de> Date: Thu Jan 28 22:45:56 2016 +0100 Remove 'level' argument of normal(). The 'level' argument was modeled after that of the eval() methods (removed in 6c946d4c). It has never been very useful except for confusing developers and it hasn't been documented in the tutorial. Moreover, I have no indication that it has ever been used. commit c12c8ec3c5cf0c75f061f6c52d04206277bbdcca Author: Richard Kreckel <kreckel(a)ginac.de> Date: Thu Jan 28 22:11:46 2016 +0100 Remove 'level' argument of evalf(). The 'level' argument was modeled after that of the eval() methods (removed in 6c946d4c). It has never been very useful except for confusing developers. Moreover, I have no indication that it has ever been used. ----------------------------------------------------------------------- Summary of changes: doc/tutorial/ginac.texi | 4 +-- ginac/add.h | 2 +- ginac/basic.cpp | 16 +++--------- ginac/basic.h | 4 +-- ginac/constant.cpp | 2 +- ginac/constant.h | 2 +- ginac/ex.h | 12 ++++----- ginac/fderivative.cpp | 7 ----- ginac/fderivative.h | 1 - ginac/function.cppy | 9 +++---- ginac/function.hppy | 2 +- ginac/idx.cpp | 2 +- ginac/idx.h | 2 +- ginac/integral.cpp | 20 +++----------- ginac/integral.h | 2 +- ginac/matrix.h | 4 +-- ginac/mul.cpp | 16 +++--------- ginac/mul.h | 4 +-- ginac/normal.cpp | 69 ++++++++++++++++--------------------------------- ginac/numeric.cpp | 4 +-- ginac/numeric.h | 4 +-- ginac/power.cpp | 18 ++++--------- ginac/power.h | 4 +-- ginac/pseries.cpp | 8 +----- ginac/pseries.h | 4 +-- ginac/structure.h | 3 +-- ginac/symbol.h | 4 +-- ginsh/ginsh.1.in | 4 +-- ginsh/ginsh_parser.ypp | 22 +++------------- 29 files changed, 80 insertions(+), 175 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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What good are evalf(level) and normal(level)?
by Richard B. Kreckel 06 Jan '16

06 Jan '16

Hi! Three weeks ago I've removed the 'level' argument of the eval() functions (on the C++11 branch). After all, if an object derived from basic is evaluated, it must evaluate its own structure, but not the one of expressions it contains - these are already evaluated. (This had become possible after elusive bugs in the automatic evaluation were fixed.) Now I wonder what the 'level' argument of evalf() and normal() are good for. The situation is slightly less clear than with eval(): After all, it *might* be useful to evalf/normal the expression's top level only without recursing down the directed acyclic graph. The question is: *Is* it a realistic use case to evalf/normal the expression to some level only? I do not see it. If anyone cares for the 'level' argument of evalf and/or normal, please respond and explain what it is used for. Otherwise, the 'level' argument will be removed by the end of this month. (Fact: This removal does not affect any of the regression tests.) All my best, -richy. -- Richard B. Kreckel <http://in.terlu.de/~kreckel/>

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[SCM] GiNaC -- a C++ library for symbolic computations branch, c++11, updated. release_1-4-0-520-gf8c2455
by git＠ginac.de 06 Jan '16

06 Jan '16

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 f8c2455fbbd34dbbfb72ac96eec0f45fd453bade (commit) from 47ecb72dce5ea9c917d1e1e77863c45a8b2b1bba (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 f8c2455fbbd34dbbfb72ac96eec0f45fd453bade Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed Jan 6 22:34:23 2016 +0100 Avoid x^0 and Order(x^0) terms together in series expansion. At the branch cut, the series expansions of log(), atan(), and atanh() assembled pseries objects which contained both x^0 and Order(x^0) terms. This patch removes the extra x^0 term if the order is 0. It also adds a GINAC_ASSERT for these kinds of invariants to the pseries ctor and simplifies the loops in pseries' degree(), ldegree(), eval() and evalf() member functions. ----------------------------------------------------------------------- Summary of changes: ginac/inifcns_trans.cpp | 24 ++++++++--- ginac/pseries.cpp | 104 +++++++++++++++++++++++++----------------------- 2 files changed, 73 insertions(+), 55 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_1-4-0-519-g47ecb72
by git＠ginac.de 01 Jan '16

01 Jan '16

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-476-g0052e44
by git＠ginac.de 01 Jan '16

01 Jan '16

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