- See if __GNUC__ < 2.97 before using std::vector<..,malloc_alloc>. Sorry,

[ginac.git] / NEWS

diff --git a/NEWS b/NEWS
index 406a6e81b003c0b7e9c19c0f4a4ee0a514c637d7..a312179c66aa341724243f7429f2f422ff54a430 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,14 +1,39 @@
 This file records noteworthy changes.
 
 This file records noteworthy changes.
 

-0.6.3 (xx July 2000)
-* Derivatives are now assembled in a slightly different manner (i.e. they 
-  'look' different on first sight).  Under certain circumstances this can 
-  result in a dramatic speedup because it gives hashing a better chance, 
+0.7.1 (--date--)
+* Fix problems with Cint that were caused by CLN's overloaded operator new.
+* Fix compilation errors with GCC3.
+
+0.7.0 (15 December 2000)
+* Requires CLN 1.1 now.  Class numeric doesn't use an indirect pointer to the
+  actual representation any more.  This is a speedup.
+* mul::expand() was reengineered to not allocate temporary excess memory.
+* Non-integer powers of a symbol are treated as constants by (l)degree() and
+  coeff().  Using these functions on an expression containing such powers used
+  to fail with an internal error message.  The side-effect is that collect()
+  can be used on expressions which are not polynomials.
+* Added a man page for the ginac-config script.
+* Ctor of numeric from char* honors Digits.
+
+0.6.4 (10 August 2000)
+* Complete revamp of methods in class matrix.  Some redundant (and poor)
+  implementations of elimination schemes were thrown out.  The code is now
+  highly orthogonal, more flexible and much more efficient.
+* Some long standing and quite nasty bugs were discovered and fixed in the
+  following functions: add::normal(), heur_gcd(), sr_gcd() and Order_eval().
+
+0.6.3 (25 July 2000)
+* Derivatives are now assembled in a slightly different manner (i.e. they
+  might 'look' different on first sight).  Under certain circumstances this
+  can result in a dramatic speedup because it gives hashing a better chance,

   especially when computing higher derivatives.
   especially when computing higher derivatives.

-* Many series expansions of built-in functions have been reengineered.
+* Some series expansions of built-in functions have been reengineered.
+* The algorithm for computing determinants can be chosen by the user.  See
+  ginac/flags.h and ginac/matrix.h.

 * The Dilogarithm (Li2) now has floating point evaluation, derivative and a
   proper series expansion.
 * Namespace 'std' cleanly disentangled, as demanded by ISO/EIC 14882-1998(E).
 * The Dilogarithm (Li2) now has floating point evaluation, derivative and a
   proper series expansion.
 * Namespace 'std' cleanly disentangled, as demanded by ISO/EIC 14882-1998(E).

+* Some minor bugfixes, one major lsolve()-bugfix and documentation updates.

 
 0.6.2 (21 June 2000)
 * ginaccint.bin is now launched by a binary program instead of by a scripts.
 
 0.6.2 (21 June 2000)
 * ginaccint.bin is now launched by a binary program instead of by a scripts.