X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=NEWS;h=12901ce2e1d4758d673197916efcc1dd51cad687;hp=f42c50880f75ef9f0df3c3a037f89079e6091139;hb=7b68fe1d835d84030d4a351c1a3c7665dc15e7e3;hpb=324ab9084b22351d70cbfa1bc2989e9823713f5a diff --git a/NEWS b/NEWS index f42c5088..12901ce2 100644 --- a/NEWS +++ b/NEWS @@ -1,6 +1,54 @@ This file records noteworthy changes. -1.4.0 () +1.5.0 () +* Added polynomial factorization. +* Added an additional (recursive descent) expression parser. +* gcd now allows the user to override (some of the) heuristics. +* Replaced custum 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 +65,7 @@ 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.