[GiNaC-devel] [SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-478-g958b72c

[Richard B. Kreckel]

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commit 958b72c93a20eaf27ed9e2092d1c342a3c8b8ecf
Author: Richard Kreckel <kreckel at ginac.de>
Date:   Sat Feb 6 00:47:08 2016 +0100

    [bugfix] fix elusive bug in quo, rem,...
    
    The power of two rational numeric objects needs not be rational. As a
    result, some care is required when transforming (b^e)*l -> (b*l^(1/e))^e
    for some rational e and l. This is a common transformation in order to
    convert a polynomial over Q into a polynomial over Z when computing
    their quotient, remainder, etc. Failure to be careful can potentially
    introduce spurious non-rational numbers into rational polynomials and
    make those operations fail. This patch avoids this transformation when
    l^(1/e) is not a rational number.

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Summary of changes:
 ginac/normal.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)


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GiNaC -- a C++ library for symbolic computations