[GiNaC-list] bug(?) in clifford_moebius_map

Vladimir Kisil kisilv at maths.leeds.ac.uk
Mon Oct 31 20:49:39 CET 2005


>>>>> "SA" == Sheplyakov Alexei <varg at theor.jinr.ru> writes:

    SA> Actually, the code in the paper was OK (modulo minor issues like
    SA> missing #include <cmath>, BTW, it is better to NOT #include
    SA> <math.h> in C++ code unless you *really* know what are you
    SA> doing).

	No, I did not aware of it, thanks for telling me. I have replaced
  the paper at arXiv.org once more to correct this.

    SA> version (moreover, the abstract says 1.3 is good enough). So,
    SA> the actual problem is that clifford_moebius_map in GiNaC 1.3 is
    SA> broken.

	As far as I remember this is the bug which leads to dummy index
  renaming and some other changes outside of clifford.cpp. It seems to
  be difficult (if ever possible) to fix it within the 1.3 branch,
  hopefully the 1.4 release will follow within a reasonable time. 

  However if one do need my example to run through 1.3 branch then the
  first version of the code is still available on arXiv.org and should
  be working with it.

  Best wishes, 
  Vladimir
-- 
Vladimir V. Kisil     email: kisilv at maths.leeds.ac.uk
--                      www: http://maths.leeds.ac.uk/~kisilv/


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