helper.rb in dydx-0.1.2

- old
+ new

@@ -123,7 +123,11 @@
     Symbol.class_eval do
       def commutative?
         [:+, :*].include?(self)
       end
     end
+
+    def ==(x)
+      to_s == x.to_s
+    end
   end
 end