lib/dydx/helper.rb in dydx-0.0.6 vs lib/dydx/helper.rb in dydx-0.0.7

@@ -6,15 +6,15 @@
       multiplication: :*,
       exponentiation: :^
     }
 
     def is_0?
-      self == 0 || (is_a?(Num) && n == 0) || (subtrahend? && x.is_0?)
+      self == 0 || (is_a?(Num) && n == 0)
     end
 
     def is_1?
-      self == 1 || (is_a?(Num) && n == 1) || (divisor? && x.is_1?)
+      self == 1 || (is_a?(Num) && n == 1)
     end
 
     def is_minus1?
       self == -1 || (is_a?(Num) && n == -1)
     end
@@ -120,6 +120,6 @@
 
     def divisor?
        is_a?(Inverse) && operator == :*
     end
   end
-end
\ No newline at end of file
+end