X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=NEWS;h=7ca5aeb93c2703655dd941594c694637fe120e5c;hp=3788916df20a5f497c3833eb12439d9513916762;hb=7bb797bc41e31fe098c94f0b5e57ddbba6cd26b6;hpb=af8c4e63b61e7a271565ce40ac0ba79e2cac72eb diff --git a/NEWS b/NEWS index 3788916d..7ca5aeb9 100644 --- a/NEWS +++ b/NEWS @@ -1,5 +1,75 @@ This file records noteworthy changes. +1.0.2 () +* 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 + +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. + +0.9.2 (31 July 2001) +* Epsilon tensor is more functional. +* simplify_indexed() is better at detecting expressions that vanish for + symmetry reasons. +* Several little bugfixes and consistency enhancements. + +0.9.1 (27 June 2001) +* Ctors of class numeric are not explicit any more. All built-in callers for + pseudofunctions are now templated and default to ex arguments which relaxes + the need for explicit ctors. +* New functions/methods: + - find() + - remove_first(), remove_last(), sort() and unique() for lists + - symmetrize_cyclic() + - decomp_rational() +* Instead of just totally symmetric or antisymmetric, complex symmetries + can now be defined for indexed objects. Symmetries are described by a + tree of "symmetry" objects that is constructed with the sy_none(), + sy_symm(), sy_anti() and sy_cycl() functions. The symmetry of a function + with respect to its arguments can also be defined (this is currently + only used for the Beta function). +* Generalized map() to take a function object instead of a function pointer. + This allows passing an arbitrary number of additional state to the + function being called. +* color_trace(), dirac_trace(), diff(), expand(), evalf() and normal() work + better with container classes, e.g. using color_trace() on a relation will + take the trace on both sides, using diff() on a matrix differentiates every + element etc. +* diff() works properly with non-commutative products and indexed objects. +* New option flag "expand_function_args" for expand(). +* Supplement some (now deprecated) macros by inlined template functions: + - is_of_type(foo, type) -> is_a(foo) + - is_ex_of_type(foo, type) -> is_a(foo) + - is_exaclty_of_type(foo, type) -> is_exaclty_a(foo) + - is_ex_exaclty_of_type(foo, type) -> is_exaclty_a(foo) + - ex_to_foobar(baz) -> ex_to(baz) +* rem(c, p[x], x) (c: numeric, p[x]: polynomial) erroneously returned p[x] + instead of c. +* Small bugfixes in pattern matching. +* Updated libtool to version 1.4. + 0.9.0 (7 June 2001) * In the output and in ginsh, lists are now delimited by { } braces, and matrices are delimited by single [ ] brackets.