+0.6.1 (18 May 2000)
+* Cleanup in the interface to Cint. The required version is now Cint 5.14.38.
+* Several bugfixes in target install.
+
+0.6.0 (11 May 2000)
+* IMPORTANT: Several interface changes make programs written with GiNaC
+ much clearer but break compatibility with older versions:
+ - f(x).series(x,p[,o]) -> f(x).series(x==p,o)
+ - series(f(x),x,p[,o]) -> series(f(x),x==p,o)
+ - gamma() -> tgamma() (The true Gamma function, there is now also
+ log(tgamma()), called lgamma(), in accord with ISO/IEC 9899:1999.)
+ - EulerGamma -> Euler
+* #include'ing ginac.h defines the preprocessor symbols GINACLIB_MAJOR_VERSION,
+ GINACLIB_MINOR_VERSION, and GINACLIB_MICRO_VERSION with the respective GiNaC
+ library version numbers.
+* Expressions can be constructed from strings like this:
+ ex e("2*x+y", lst(x, y));
+* ex::to_rational() provides a way to extend the domain of functions like
+ gcd() and divide() that only work on polynomials or rational functions (the
+ good old ex::subs() method reverses this process)
+* Calling diff() on a function that has no derivative defined returns the
+ inert derivative function "Derivative".
+* Several new timings in the check target. Some of them may be rather rude
+ at your machine, feel free to interrupt them.
+
+0.5.4 (15 March 2000)
+* Some algorithms in class matrix (notably determinant) were replaced by
+ less brain-dead ones and should now have much better performance.
+* Checks were completely reorganized and split up into three parts:
+ a) exams (small regression tests with predefined input)
+ b) checks (lenghty coherence checks with random input)
+ c) timings (for coherence and crude benchmarking)
+* Behaviour of .evalf() was changed: it doesn't .evalf() any exponents.
+* Expanded expressions now remember they are expanded to prevent
+ superfluous expansions.
+* Small bugfixes and improvements in the series expansion.
+
git://www.ginac.de / ginac.git / blobdiff