* Tidied some old crap.

[ginac.git] / NEWS

diff --git a/NEWS b/NEWS
index 8c11cffc96ef9a4b3ffb9fbf601c3599f491374a..3234725c22f773cf82117906b689129e9efeef39 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -6,14 +6,19 @@ This file records noteworthy changes.
   and two types of indices: "idx" for simple indices and "varidx" for
   indices with variance. There are predefined delta, epsilon and metric
   tensors, and a function simplify_indexed() that performs canonicalization
-  and dummy index summations.
+  and dummy index summations. Matrix objects can be indexed for doing simple
+  linear algebra.
 * Added an option "expand_indexed" to expand() to perform expansion of
   indexed objects like (a+b).i -> a.i + b.i
 * Renamed get_indices() to get_free_indices(), which no longer returns
   dummy indices and checks the consistency of indices in sums.
 * sqrfree() factorization fixed and improved syntactically.
 * subs() works on matrices.
+* Matrices can be constructed from flat list of elements; diagonal matrices
+  can be constructed from list of diagonal elements with diag_matrix()
 * Fixed memory leak in expand().
+* Operator% for objects of class ncmul has gone.  Use operator* now for that
+  case too, which is much more natural.
 
 0.7.3 (28 February 2001)
 * Several bugfixes and minor performance tunings.