Bug fix in the routine H_evalf (a minus sign should not be forgotten).

[ginac.git] / NEWS

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 This file records noteworthy changes.
 
+1.8.0 (14 October 2020)
+* New routines for the numerical evaluation of iterated integrals like
+  elliptic multiple polylogarithms or iterated integrals of modular forms.
+* Stronger normalization methods for expressions with powers. Where this
+  is safe, GiNaC now tries replacing various kinds of powers in order to
+  find and cancel common subexpressions.
+* Improved CMake build.
+
+1.7.11 (3 August 2020)
+* Fix elusive bugs in factor() and in expand().
+
+1.7.10 (28 June 2020)
+* Fix collect_common_factors() for hidden zero arguments.
+* Fix build on modern systems (C++20 and Python3).
+
+1.7.9 (11 April 2020)
+* Fix unarchiving of overloaded functions.
+* Fix MinGW64 build.
+
+1.7.8 (7 October 2019)
+* Fix pseries::evalf(), broken since 1.7.0.
+* Fix a corner-case bug in H_evalf().
+
+1.7.7 (22 September 2019)
+* Fix unarchiving empty containers.
+* Remove obsolete exhashmap implementation.
+* Fix issues with zeta computation.
+* Build with Python3.
+
+1.7.6 (22 April 2019)
+* Fix a bug in mul::series() about asymptotic order term.
+* Fix cl_N code generation for small negative integers.
+* Fix multiple polylog computation related to trailing zeros and user-specified
+  signs for small imaginary parts.
+* Fix CMake build with Python3.
+
+1.7.5 (17 February 2019)
+* Add Markowitz-ordered Gaussian eliminatin.
+* Avoid un-normal zeros in matrix::solve().
+* Accept exprseq arguments in lsolve(eqns, vars).
+* Add overload of matrix::rank(solve_algo).
+* Fix case in G_do_hoelder with real x values which are not cl_R.
+* Fix an elusive bug in expairseq/add ctor, introduced in 1.7.0.
+
+1.7.4 (19 February 2018)
+* Fix ABI compatibility with 1.7.[0-2] (broken unintentionally in 1.7.3).
+
+1.7.3 (1 February 2018)
+* Speed up some corner cases of polynomial factorization.
+* Speed up some corner cases of gcd computation.
+* Speed up factorization of pre-factored polynomials.
+* Make matrix::solve() work with hidden (non-normal) zeros.
+* Fix bug in evaluation of real and imaginary parts of powers.
+* Fix some LaTeX output, add new function symbol::get_TeX_name().
+
 1.7.2 (10 January 2017)
 * Fix memory leak in operators returning relationals, introduced in 1.7.0.
 * Make macro GINAC_DECLARE_REGISTERED_CLASS() work outside namespace GiNaC.