From git at ginac.de  Sun Jun 10 13:51:40 2018
From: git at ginac.de (Richard B. Kreckel)
Date: Sun, 10 Jun 2018 13:51:40 +0200 (CEST)
Subject: [GiNaC-devel] [SCM] GiNaC -- a C++ library for symbolic
 computations branch, master, updated. release_1-4-0-610-g48619ed7
Message-ID: <20180610115141.0132AD800A3@cebix.net>

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commit 48619ed77871a6bcae23df460f426fc34698cd1e
Author: Richard Kreckel <kreckel at ginac.de>
Date:   Sun Jun 10 13:46:39 2018 +0200

    Correct wording in tutorial regarding degree(), ldegree().

-----------------------------------------------------------------------

Summary of changes:
 doc/tutorial/ginac.texi | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)


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From git at ginac.de  Wed Jun 13 23:12:52 2018
From: git at ginac.de (Richard B. Kreckel)
Date: Wed, 13 Jun 2018 23:12:52 +0200 (CEST)
Subject: [GiNaC-devel] [SCM] GiNaC -- a C++ library for symbolic
 computations branch, master, updated. release_1-4-0-611-g26840ecc
Message-ID: <20180613211252.A4825D801D5@cebix.net>

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commit 26840ecc367d9f9dd4e3758233be1bdd3563cd8a
Author: Vitaly Magerya <vmagerya at gmail.com>
Date:   Wed Jun 13 23:07:45 2018 +0200

    Add optional matrix::rank() algorighm selection.
    
    Before, matrix::rank() was hardcoded to use Bareiss elimination,
    which for some matrices is way too slow (and I had to work around
    this limitation in my own code). I propose adding an argument that
    will allow users to select which elimination scheme to use. The
    argument is the same as matrix::solve() takes (so, solve_algo::*).
    
    I've tried to mimic how a similar argument was added to
    matrix::inverse() by keeping the current set of rank() functions
    and defining separate ones with the 'algo' argument, with the
    old ones calling the new ones with solve_algo::automatic. This
    is instead of using default argument values.
    
    I've also put the code that makes the automatic selection of
    the elimination method into a separate function so that both
    matrix::solve() and matrix::rank() could share it. There's a bit
    of similar code in matrix::determinant(), but since the self
    of determinant algorithms is different from the elimination
    algorithms, it's not clear if these two could be unified.

-----------------------------------------------------------------------

Summary of changes:
 doc/tutorial/ginac.texi |  14 +++----
 ginac/matrix.cpp        | 108 ++++++++++++++++++++++++++----------------------
 ginac/matrix.h          |   4 ++
 3 files changed, 69 insertions(+), 57 deletions(-)


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From git at ginac.de  Wed Jun 20 01:15:42 2018
From: git at ginac.de (Richard B. Kreckel)
Date: Wed, 20 Jun 2018 01:15:42 +0200 (CEST)
Subject: [GiNaC-devel] [SCM] GiNaC -- a C++ library for symbolic
 computations branch, master, updated. release_1-4-0-612-g45ca93fc
Message-ID: <20180619231542.77A0FD801DF@cebix.net>

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commit 45ca93fc48c14f733de73ffbbfef0834be731b08
Author: Vitaly Magerya <vmagerya at gmail.com>
Date:   Wed Jun 20 01:13:07 2018 +0200

    Consider solve_algo::markowitz in automatic elimination algorithm selection.
    
    Cf. <https://www.ginac.de/pipermail/ginac-list/2018-June/002211.html>.

-----------------------------------------------------------------------

Summary of changes:
 ginac/flags.h    |  8 +++++---
 ginac/matrix.cpp | 37 +++++++++++++++++++++++++++----------
 2 files changed, 32 insertions(+), 13 deletions(-)


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