fixed some typos

[ginac.git] / NEWS

diff --git a/NEWS b/NEWS
index 49df8a8f507d7aadc7b1f86c00f94b6b6ff17fbf..be5fbe7fea7ed7d26359fd3296a4ec53fa45ed7a 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,17 @@ This file records noteworthy changes.
 
 1.0.13 (<date>)
 * Contracting epsilon tensors with Euclidean indices now works.
+* Improved dummy index symmetrization in sums.
+* Added dirac_gammaL/R(), which can be used instead of dirac_gamma6/7()
+  but are single objects, to allow for a more compact notation of Dirac
+  strings.
+* Powers with negative numeric exponents are printed as fractions in the
+  LaTeX output.
+* Added symbolic_matrix() for the convenient creation of matrices filled
+  with symbols.
+* Added collect_common_factors() which collects common factors from the
+  terms of sums.
+* simplify_indexed() converts "gamma~mu*p.mu" to "p\".
 
 1.0.12 (30 October 2002)
 * Fixed a bug in power::expand() that could produce invalid expressions.