[GiNaC-devel] [SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-769-g9435d80a

[Richard B. Kreckel]

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commit 9435d80ac31c97c2a698928e59cc4489f1fad5e7
Author: Richard Kreckel <kreckel at ginac.de>
Date:   Sun Aug 6 19:27:51 2023 +0200

    Fix series of positive powers of polynomials.
    
    Before calling pseries::power_const(), make sure the basis series has
    sufficient terms. In particular, do not shrink the order of expansion
    - only grow it.
    
    Fix various hairy problems in pseries::power_const() when a polynomial
    is raised to a positive integer power.
    
    (The special cases here can actually also be computed by Taylor
    expansion but the fixes should be more general.)
    
    Also add test cases.
    
    Thanks to Vitaly Magerya <vmagerya at gmail.com> for reporting this.

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

Summary of changes:
 check/exam_pseries.cpp | 19 +++++++++++++++++++
 ginac/pseries.cpp      | 46 ++++++++++++++++++++++++++++++----------------
 2 files changed, 49 insertions(+), 16 deletions(-)


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GiNaC -- a C++ library for symbolic computations