- Changed behaviour of .evalf() to not evalf any exponents.

[ginac.git] / NEWS

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 This file records noteworthy changes.
 
-0.4 (26 November 1999)
-* First release
+0.5.4 (?x?y?z?  March 2000)
+* Algorithms in class matrix (determinant and solve) were replaced by
+  less brain-dead ones and should now have much better performance.
+* Checks were reorganized and split up into three parts:
+  a) exams (small regression tests with predefined input)
+  b) checks (lenghty coherence checks with random input)
+  c) timings (for coherence and crude benchmarking)
+* Behaviour of .evalf() was changed: it doesn't .evalf() any exponents.
+
+0.5.3 (23 February 2000)
+* A more flexible scheme for registering functions was implemented,
+  allowing for remembering, too.
+* Some Bugfixes.
+
+0.5.2 (16 February 2000)
+* Mainly fixes a bug in the packaging of release 0.5.1.
+
+0.5.1 (14 February 2000)
+* Fixes a small number of bugs.
+
+0.5.0 (7 February 2000)
+* Expressions can be written ("archived") to files and read therefrom.
+* Addition of GiNaC-cint, which lets you write complete programs in
+  an interactive shell-like manner in your favoured programming
+  language (i.e. C++).
+
+0.4.1 (13 December 1999)
+* Series Expansion of Gamma function and some other trigonometric
+  functions at their poles works now.
+* Many more evaluations of special functions at points where
+  exact results exist.
+* info_flags::rational doesn't return true for complex extensions
+  any more---use info_flags::crational for the old behaviour.
+  info_flags::integer and -::cinteger work similarly, the same
+  holds for types like info_flags::rational_polynomial.
+
+0.4.0 (26 November 1999)
+* First public release.