diff --git a/lib/matrix.rb b/lib/matrix.rb
index 360e79f3cc..3c078c0c06 100644
--- a/lib/matrix.rb
+++ b/lib/matrix.rb
@@ -1764,15 +1764,6 @@ class Vector
   end
   alias map collect
 
-  #
-  # Like Vector#collect2, but returns a Vector instead of an Array.
-  #
-  def map2(v, &block) # :yield: e1, e2
-    return to_enum(:map2, v) unless block_given?
-    els = collect2(v, &block)
-    Vector.elements(els, false)
-  end
-
   #
   # Returns the modulus (Pythagorean distance) of the vector.
   #   Vector[5,8,2].r => 9.643650761