text: #calc.py
  
  class Mathx:
      PI= 22/7
      name = ""
  
      def __init__(self,name):
          self.name = name
          
      def add(self,x ,y):
          z=x+y
          return z
      
      def circlearea(self,r):
          a=self.PI * r * r
          return a
  
  def multi(x,y):
      return x*y
  
  