X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=NEWS;h=bd495b3fff426ddeaf7557c6bb5c23c47238faab;hp=f42c50880f75ef9f0df3c3a037f89079e6091139;hb=073bf40a73e419a3dbcb6dfa190947ce2cc3bdce;hpb=324ab9084b22351d70cbfa1bc2989e9823713f5a diff --git a/NEWS b/NEWS index f42c5088..bd495b3f 100644 --- a/NEWS +++ b/NEWS @@ -1,6 +1,134 @@ This file records noteworthy changes. -1.4.0 () +1.6.2 (6 November 2011) +* Fixed the parser to read GiNaC::lst again. +* Fixed a compile warning (relevant to openSUSE build). +* Fixed a bug concerning the subsitutions in indexed expressions + (subs_options::no_index_renaming was ignored). + +1.6.1 (18 July 2011) +* Fixed several internal assertions for the debug version of GiNaC. +* More verbose report of (auto-)configuration problems. +* Fixed a compile problem with ginsh using gcc 4.6. + +1.6.0 (22 May 2011) +* Fixed compilation issues with clang. +* Fixed compilation issues with VC++. +* Fixed a segfault in fsolve() and improved its numerical algorithm. +* Fixed several memory leaks in power::eval(). +* Fixed the substitution algorithm that led to wrong results (exp(log(x))->x). +* Fixed a bug in add:eval() (real_part() had returned wrong results). +* Fixed infinite loop bug when unarchiving realsymbol and possymbol. +* Fixed bugs in the GCD code. +* Fixed empty string bug in symbol::get_name(). +* Fixed bugs concerning STL vector sizes that can potentially cause segfaults. +* Fixed a bug in is_polynomial(). +* Removed autogen dependencies. +* Improved simplify_indexed() algorithm. +* Changed the connection between library version and package version. +* power::series() can handle now more expressions with singularities in the exponent. +* Added conjugate() methods to functions cosh, sinh, tanh. + +1.5.8 (06 July 2010) +* Changed default behaviour of conjugate() for user-defined functions to avoid + wrong evaluations. A user-defined conjugate_func must now be explicitly + registered. +* Fixed: Parser now handles abbreviations as advertized in the manual. +* Fixed two bugs in the GCD code (one infinite loop, one miscalculation). +* Fixed dangerous iterator use. +* Fixed a memory leak in excompiler. +* Fixed several syntax issues wrt to gcc 4.5 and wrt to compile option -std=cxx0x. +* Fixed a wrong URL and a texinfo problem in the manual. +* Added degree_vector() utility function. + +1.5.7 (29 March 2010) +* Fixed a bug in the GCD code (infinite loop in pgcd()). +* Fixed a bug in atan2() (division by zero error for atan2(x,0) if x is a + negative and composite term). +* Products now correctly set info_flags::negative and info_flags::negint. + +1.5.6 (28 January 2010) +* Fixed compile problem with gcc 3.4. +* Improved excompiler: The ginac-excompiler script will only be installed if + excompiler is supported and enabled. + +1.5.5 (04 November 2009) +* Correct libtool versioning. + +1.5.4 (02 November 2009) +* Default parser now can again read in user defined classes. +* Add mul::info() and add::info() support for numeric info_flags (GiNaC now can + detect that the sum or product of a number of positive expressions is again a + positive expression). +* Fixed cast that caused compile error on 64bit machines. +* Fixed incorrect uses of STL iterators. +* Removed subdirectory debian. +* Output LaTeX-symbols using \mathrm, instead of \mbox. + +1.5.3 (30 July 2009) +* The parser now understands user-defined functions by default. The identifier + names can now contain underscores. + +1.5.2 (10 July 2009) +* Fixed documentation of return_type_info() +* Fixed cstdio include issue. +* GiNaC now requires at least version 1.2.2 of cln. + +1.5.1 (25 February 2009) +* Fixed compiling problems with GNU g++ 3.4. +* Work around weird C++ RTTI behaviour on woe32 so GiNaC works on MinGW again. + +1.5.0 (17 February 2009) +* Added polynomial factorization. +* New, faster (recursive descent) expression parser. +* Faster GCD computation. +* gcd() now allows the user to override (some of the) heuristics. +* Writing extensions classes is simpler now: + - Replaced custom RTTI by standard C++ RTTI. + - Definition of archiving methods now optional when declaring a new GiNaC class. +* Fixed recursion in polynomial divide that caused a significant slowdown in + sqrfree(). +* Improved lsolve() of systems containing non-numeric coefficients. +* Removed implicit conversions from cl_N to numeric. +* Improved configuration and compatibility. + +1.4.4 (7 Nov 2008) +* Fixed a bug in the multiple polylogarithms Li/G that caused imaginary parts + of the arguments to be ignored. +* Fixed archiving of complex numbers. +* Made the behaviour of class function more consistent with respect to + ncmul::eval(). +* Fixed bug in power::is_polynomial. +* Improved heur_gcd() so it can handle rational polynomials. +* Improved build scripts. + +1.4.3 (04 April 2008) +* Fixed bug in numerical evaluation of multiple polylogarithms and + alternating multiple zeta values introduced in version 1.4.2. +* Nielsen polylog now invalidates its lookup tables in case the precision + (Digits) has been changed. +* Added new checks for recent bugs in the numerical evaluation of Li and zeta. + +1.4.2 (03 April 2008) +* Fixed VPATH building of documentation. +* Fixed bug in numerical evaluation of multiple polylogarithms for arguments + equal to certain roots of unity (thanks to Jianqiang Zhao). +* Fixed check for memory leakage in parser. +* Made internal function coerce() standard compliant. +* Improved lsolve() of systems containing non-numeric coefficients. +* Improved automatic test programs. Now they work on MinGW and Cygwin as well. + +1.4.1 (21 November 2007) +* Fixed memory leak in ginac_yylex(). +* Fixed memory leaks in mul::eval() and power::eval(). +* Fixed macro checking for version of libreadline (Mac OS X). +* Fixed broken preprocessor instruction in excompiler.cpp. +* Fixed broken module loading in excompiler.cpp. +* info(info_flags::has_indices) now works for sums and products. +* Improved mul::expand(). +* Improved CLN output. + +1.4.0 (31 August 2007) * New tinfo mechanism. * Removed rtt from class symbol. * Faster archiving by adding a map from strings to indices in the atoms vector. @@ -17,7 +145,7 @@ This file records noteworthy changes. * New flag for positive symbols/numbers, added possymbol class. * Added programming examples in doc/examples -1.3.8 () +1.3.8 (28 August 2007) * Drop support of ginac-config and ginac.m4. Please use pkg-config instead. * atan2(y,x) branch cut correction. * Fixed bug in series expansion.