* lib/matrix.rb: suppress warnings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26417 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/mathn.rb b/lib/mathn.rb
index f834893f3f..716b48602d 100644
--- a/lib/mathn.rb
+++ b/lib/mathn.rb
@@ -54,6 +54,7 @@ class Bignum
 end
 
 class Rational
+  remove_method :**
   def ** (other)
     if other.kind_of?(Rational)
       other2 = other
@@ -188,6 +189,9 @@ module Math
     end
   end
 
+  class << self
+    remove_method(:sqrt)
+  end
   module_function :sqrt
   module_function :rsqrt
 end