Make new tinfo-system work on AMD64.

[ginac.git] / NEWS

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 This file records noteworthy changes.
 
-1.3.0 (<insert date>)
+1.3.1 (04 May 2005)
+* integral() and eval_integ() can be used from ginsh.
+* Integrals can be series-expanded.
+* Fixed a library initialization problem.
+* GiNaC compiles from tarball even if lex/flex is missing.
+* Fixed bugs in canonicalize_clifford(), clifford_prime() and clifford_to_lst().
+* clifford_moebius_map(), remove_dirac_ONE() and LaTeX output of Clifford
+  objects now care about representation labels.
+* Fixed bug in gcd.
+* Better output for slashed expressions
+
+1.3.0 (19 October 2004)
+* The Clifford classes have been generalized to allow working with Clifford
+  algebras generated by arbitrary symmetric tensors or matrices. Also, a lot
+  of new functions for Clifford algebras have been added, including
+  automorphisms and Moebius transformations. [V. Kisil]
+* Added some basic symbolic and numeric integration facilities. [C. Dams]
+* The multiple polylogarithm Li() now evaluates numerically for arbitrary
+  arguments.
+* New functions G(a,y) and G(a,s,y) added (another notation for multiple
+  polylogarithms).
+
+1.2.4 (12 October 2004)
+* Added ex::unitcontprim() to compute the unit, content, and primitive parts
+  of a polynomial in one go.
+* binomial(n, k) evaluates for non-integer arguments n.
+* Li(2,x) now evaluates for +-I.
+* Optimized Li(2,x).
+* Fixed bug in Li(n,x) (if Li(2,x) was calculated with high precision the
+  enlargement of the look-up table caused a segmentation fault).
+* Fixed another bug in the series expansion of powers, and a bug in
+  power::info().
+
+1.2.3 (13 August 2004)
+* Added variants of dirac_trace() and color_trace() that take the trace over
+  more than one representation label by specifying a set or list of labels.
+* diracgamma::contract_with() uses Chisholm identities in 4 dimensions to
+  produce more compact results.
+* Fixed a bug in the series expansion of powers.
+* The --enable-html-doc and --enable-ps-doc configure options are gone.
+  Documentation in HTML, DVI, PostScript, and PDF formats is now built with
+  "make html", "make dvi", "make ps", and "make pdf", respectively. The only
+  documentation that gets built by default are the tutorial in .info format
+  and the manpages.
+
+1.2.2 (3 August 2004)
+* Added const_preorder_iterator and const_postorder_iterator classes (and
+  associated methods ex::pre/postorder_begin/end()) providing tree traversal
+  with iterators.
+* Fixed the LaTeX output of the varidx class.
+* Fixed bugs in series expansion and complex conjugation.
+* (p.i*p.i).get_free_indices() returns the correct result () instead of (.i).
+* Symbolic functions without any eval(), evalf() etc. functions now work
+  properly.
+* integer_content(), content(), and primpart() now also work for polynomials
+  with rational coefficients (calculating the LCM of coefficients'
+  denominators).
+* Added method matrix::rank().
+* Added function resultant().
+* Added integer_content() function to ginsh.
 
 1.2.1 (23 April 2004)
 * Fixed infinite recursion in atan2_evalf() and improved atan2_eval().