This file records noteworthy changes.
-1.4.0 (<date>)
+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.
* New flag for positive symbols/numbers, added possymbol class.
* Added programming examples in doc/examples
-1.3.8 (<date>)
+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.
* Correct csrc output for idx and fderivative.
* Improved handling of convergence transformationis for Li/G.
* Fix compilation issues with prereleases of GCC 4.3.
+* info_flags::expanded added.
+* input_parser also accepts pow().
+* texinfo.tex removed from package.
1.3.7 (05 February 2007)
* Fixed bug in expansion of power.
git://www.ginac.de / ginac.git / blobdiff