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+Thu Sep 17 06:03:40 2009 Marc-Andre Lafortune <ruby-core@marc-andre.ca>
+
+ * lib/matrix.rb (Matrix#rank): Two bug fixes. One made
+ Matrix[[0,0],[0,0],[1,0]].rank raise a NoMethodError while the other
+ one had Matrix[[0,1],[0,0],[1,0]].rank raise a TypeError.
+
Thu Sep 17 06:02:04 2009 Marc-Andre Lafortune <ruby-core@marc-andre.ca>
* lib/matrix.rb: Optimizations