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+Sat Dec 10 01:06:06 2005  Keiju Ishitsuka <keiju@ruby-lang.org>
+	
+	* lib/matrix.rb: add Matrix#determinant_e, Matrix#rank_e.
+	  [ruby-dev:27820] and related thread.
+	
 Sat Dec 10 00:31:42 2005  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* eval.c (calling_scope_t): gave names to magic numbers for rb_call().