diff --git a/ChangeLog b/ChangeLog
index c242392fc0..8041f2b9ce 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Mar  3 16:14:24 2010  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* lib/matrix.rb (Vector#each): make Vector enumerable.  
+	  [ruby-core:28405]
+
 Wed Mar  3 14:28:23 2010  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* array.c (rb_ary_select_bang): select! removes all elements for
diff --git a/lib/matrix.rb b/lib/matrix.rb
index d452bf459e..a008182c42 100644
--- a/lib/matrix.rb
+++ b/lib/matrix.rb
@@ -1081,6 +1081,7 @@ end
 #
 class Vector
   include ExceptionForMatrix
+  include Enumerable
 
   #INSTANCE CREATION
 
@@ -1140,6 +1141,16 @@ class Vector
   # ENUMERATIONS -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
   #++
 
+  #
+  # Iterate over the elements of this vector
+  #
+  def each
+    return to_enum(:each) unless block_given?
+    @elements.each do |i|
+      yield i
+    end
+  end
+
   #
   # Iterate over the elements of this vector and +v+ in conjunction.
   #