pgcd(): avoid infinite loop if the first GCD candidate coincides with GCD

[ginac.git] / NEWS

diff --git a/NEWS b/NEWS
index ba78d89eb100586a8186cfac83dd25fa64a3cbde..e2f4e1859ffd7cf04830b8330e4f6dc43c9d0cd0 100644 (file)
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@@ -1,5 +1,29 @@
 This file records noteworthy changes.
 
+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.