GiNaC 1.0.13 now available

[Christian Bauer]

Hello!

The GiNaC Development Group (which is effectively reduced to one member now)
wishes everybody a Happy New Year (belatedly) and a Happy <insert-your-
favorite-religiously-motivated-around-new-year-celebration-here>, and is
proud to present GiNaC 1.0.13, the latest in C++-based made-for-physicists-
but-useful-for-other-people-too computer algebra library technology. Now with
these exciting new features:

 * Contracting epsilon tensors with Euclidean indices now works.
 * Improved dummy index symmetrization in sums.
 * Added dirac_gammaL/R(), which can be used instead of dirac_gamma6/7()
   but are single objects, to allow for a more compact notation of Dirac
   strings.
 * Powers with negative numeric exponents are printed as fractions in the
   LaTeX output.
 * Added symbolic_matrix() for the convenient creation of matrices filled
   with symbols.
 * Added collect_common_factors() which collects common factors from the
   terms of sums.
 * simplify_indexed() converts "gamma~mu*p.mu" to "p\".

As usual, it's available from our FTP server:

  ftp://ftpthep.physik.uni-mainz.de/pub/GiNaC

Happy computing,
Christian

-- 
  / Coding on PowerPC and proud of it
\/ http://www.uni-mainz.de/~bauec002/