X-Git-Url: https://ginac.de/ginac.git//ginac.git?a=blobdiff_plain;f=NEWS;h=d903eb78210759f295ffe3b1298a8ff341692d91;hb=5f37c6e1a661192a68a77ed2b6f2d3a74199cd3c;hp=b5a706a9ae46c44fc0b09f82e7293cb24ee829f8;hpb=e7cc6a764ff67b5885d6633385fac23ccc1dc9a7;p=ginac.git

diff --git a/NEWS b/NEWS
index b5a706a9..d903eb78 100644
--- a/NEWS
+++ b/NEWS
@@ -1,14 +1,35 @@
 This file records noteworthy changes.
 
-1.0.4 (24 January 2001)
+1.1.0 (<date>)
+* Removed deprecated macros is_ex_a, is_ex_exactly_a and friends for good.
+* Made the hashing more simple and efficient.
+* The scalar_products mechanism allows the specification of an index dimension.
+
+Backlog from 1.0.n:
+* Powers of indexed objects are now parenthesized correctly in LaTeX output.
+* Input parser handles indices (they have to be specified in the same list
+  as the symbols).
+* Added some limited support for subspaces in the idx and tensor classes.
+* Fixed a bug in canonicalize() (antisymmetric canonicalization of an already
+  sorted list containing two or more equal objects failed to return 0).
+* simplify_indexed() now raises/lowers dummy indices to canonicalize the index
+  variance. This allows some simplifications that weren't possible before,
+  like eps~a.b~c~d*X.a*X~b -> 0 and X.a~a-X~a.a -> 0.
+* Implemented relational::subs().
+* Fixed bug in simplify_ncmul() for clifford objects.
+* Fixed LaTeX output of indexed and matrix objects and powers thereof.
+* Fixed matrix::pow(n) for n==0.
+* "(x+1).subs(x==x-1)" now returns the correct result "x" instead of "x-1".
+* (l)degree(s), coeff(s, n) and collect(s) were extended to accept expressions
+  of any class (except add/mul/ncmul/numeric) for "s". They should even work
+  if "s" is a "power" object, as long as the exponent is non-integer, but with
+  some limitations. For example, you can "collect(a*2^x+b*2^x, 2^x)" to get
+  "(a+b)*2^x", but "degree(2^(3*x), 2^x)" yields 0 instead of 3).
 * Speedup in expand().
 * Faster Bernoulli numbers (Markus Nullmeier).
-* Some minor bugfixes and documentation updates.
-
-1.0.3 (21 December 2001)
 * Fixed a bug where quo() would call vector::reserve() with a negative
   argument.
-* Fix several bugs in code generation.
+* Several small bugfices in code generation, output and documentation.
 
 1.0.2 (19 December 2001)
 * Input parser recognizes "sqrt()", which is also used in the output.