X-Git-Url: https://ginac.de/ginac.git//ginac.git?a=blobdiff_plain;f=NEWS;h=d903eb78210759f295ffe3b1298a8ff341692d91;hb=1b0eb6f8881286b996d8ac906df5dbb4e10215b6;hp=6bbe8f546258d59324b56e2428412c7306dccf5b;hpb=0793dd93c88b56ed21569e1076863a4de869e03d;p=ginac.git

diff --git a/NEWS b/NEWS
index 6bbe8f54..d903eb78 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,62 @@
 This file records noteworthy changes.
 
+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).
+* Fixed a bug where quo() would call vector::reserve() with a negative
+  argument.
+* 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.
+* divide(a,b,q) only modifies q if the division succeeds; also, divide(a,b,a)
+  works now.
+* Fixed small bug in dummy index renaming which could cause it to not
+  recognize renamable indices in some cases.
+* power::degree() and power::ldegree() throw an exception when encountering
+  a non-integer exponent.
+* Add output-support for Python bindings.
+
+1.0.1 (22 November 2001)
+* Function sqrfree() handles a few more cases now.
+* Class relational has real canonical ordering now.
+* Handle obscene libreadline version numbers when building ginsh.
+
+1.0.0 (6 November 2001)
+* Some internal reorganization resulting in a general speed-up.
+* The last 3 evaluated expressions in ginsh are now referred to with the
+  tokens '%', '%%' and '%%%'. The old '"', '""' and '"""' remain for
+  compatibility but may be removed in a future version of GiNaC.
+
+0.9.4 (20 September 2001)
+* Functions have better support for external scripting languages.
+* Interface cleanups and bugfixes.
+* Fix silly bug in evalf() that prevented things like 2^Pi being computed.
+
 0.9.3 (16 August 2001)
 * series expansion now much more consistent for small order expansion.
 * lsolve() accepts algorithmic hint as parameter.