Updated changes

[ginac.git] / NEWS

diff --git a/NEWS b/NEWS
index c4300e77295dfe2348338e202eed32b3d3664e02..f163295fc172c6cc4f088013a22498adf2fce6a0 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,36 @@
 This file records noteworthy changes.
 
-1.1.4 (<date>)
+1.1.8 (<date>)
+* S(0,p,x) now evaluates numerically.
+
+1.1.7 (11 March 2004)
+* Fixed a bug in canonicalize_clifford().
+* Series expansion now works predictably. All terms with the exponent of the
+  expansion variable smaller than the given order are calculated exactly. If
+  the series is not terminating, the Order function is (at least) of the given
+  order.
+
+1.1.6 (22 January 2004)
+* Added a function option "dummy()" which means "no options". This simplifies
+  the implementation of symbolic functions which are not to be further
+  evaluated.
+* Removed a bug in the numerical evaluation of Li() that caused the system
+  to hang for certain parameter combinations.
+* Fixed a bug in the calculation of hash values for indices that could lead
+  to wrong results or bogus error messages from simplify_indexed().
+* Fixed a bug in the evaluation of harmonic polylogarithms for complex
+  arguments with positive imaginary part.
+
+1.1.5 (5 November 2003)
+* Harmonic polylogarithms now numerically evaluate for arbitrary arguments
+  (parameter must still be positive integers).
+* The zeta function now can also be given a lst as a parameter in which case
+  it becomes a multiple zeta value. The use of mZeta is deprecated.
+* The order of parameters for the multiple polylogarithm has been corrected.
+* Documentation for the nested sums functions zeta, harmonic polylog, multiple
+  polylog, etc. has been added.
+
+1.1.4 (17 October 2003)
 * Lists and matrices can now be initialized from comma-separated lists of
   expressions, like this:
 
@@ -15,6 +45,10 @@ This file records noteworthy changes.
   This is both faster and produces much smaller code than the old constructors
   lst(ex, ex, ...) and matrix(unsigned, unsigned, lst), especially in the case
   of matrices, and is now the recommended way to create these objects.
+* The function mZeta now evaluates much faster for arbitrary parameters. The
+  harmonic and multiple polylogarithms evaluate considerably faster and check
+  for convergence. The order of parameters for the harmonic polylogarithm
+  has been corrected.
 
 1.1.3 (22 August 2003)
 * Added new symbolic functions for better integration with nestedsums: