- normal() respects the "level" parameter to limit the recursion depth

[ginac.git] / NEWS

diff --git a/NEWS b/NEWS
index 4467ebcde59a2aec24bee7cc44c4fe41667fc35c..ce9c69864d07515e1d1ef3e2bfc685b5ab906148 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,23 @@
 This file records noteworthy changes.
 
+0.6.0 (...)
+* 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
+* Several new timings in the check target.  Some of them may be rather rude 
+  at your machine.
+
 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.