GiNaC 0.9.1 released

[Christian Bauer]

MAIN SCREEN TURN ON.

HOW ARE YOU GENTLEMEN!!

WHAT HAPPEN?

YOU ARE ON THE WAY TO NEW FEATURES:
  * Ctors of class numeric are not explicit any more.  All built-in callers for
    pseudofunctions are now templated and default to ex arguments which relaxes
    the need for explicit ctors.
  * New functions/methods:
    - find()
    - remove_first(), remove_last(), sort() and unique() for lists
    - symmetrize_cyclic()
    - decomp_rational()
  * Instead of just totally symmetric or antisymmetric, complex symmetries
    can now be defined for indexed objects. Symmetries are described by a
    tree of "symmetry" objects that is constructed with the sy_none(),
    sy_symm(), sy_anti() and sy_cycl() functions. The symmetry of a function
    with respect to its arguments can also be defined (this is currently
    only used for the Beta function).
  * Generalized map() to take a function object instead of a function pointer.
    This allows passing an arbitrary number of additional state to the
    function being called.
  * color_trace(), dirac_trace(), diff(), expand(), evalf() and normal() work
    better with container classes, e.g. using color_trace() on a relation will
    take the trace on both sides, using diff() on a matrix differentiates every
    element etc.
  * diff() works properly with non-commutative products and indexed objects.
  * New option flag "expand_function_args" for expand().
  * Supplement some (now deprecated) macros by inlined template functions:
    - is_of_type(foo, type) -> is_a<type>(foo)
    - is_ex_of_type(foo, type) -> is_a<type>(foo)
    - is_exaclty_of_type(foo, type) -> is_exaclty_a<type>(foo)
    - is_ex_exaclty_of_type(foo, type) -> is_exaclty_a<type>(foo)
    - ex_to_foobar(baz)  ->  ex_to<foobar>(baz)
  * rem(c, p[x], x) (c: numeric, p[x]: polynomial) erroneously returned p[x]
    instead of c.
  * Small bugfixes in pattern matching.
  * Updated libtool to version 1.4.

WHAT YOU SAY?

DOWNLOAD EVERY 'GINAC': ftp://ftpthep.physik.uni-mainz.de/pub/GiNaC

FOR GREAT JUSTICE,
Christian

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