       toString: ->
         "Exp(b: #{@base().toString()}, p: #{@power().toString()})"
 
+      isPowerOpen: -> @power().isOpen()
 
     class_mixer(Exponentiation)
 


      @buildError: (content)->
        @build(is_error: true)

      initialize: (opts={})->
        defaults =


      display: ->
        @expression.display()

    class_mixer(Equation)

    class ExpressionComponent
