text: import math
  
  
  def addition(a, b):
      a = float(a)
      b = float(b)
      c = a + b
      return c
  
  
  def subtraction(a, b):
      a = float(a)
      b = float(b)
      c = b - a
      return c
  
  
  def multiplication(a, b):
      a = float(a)
      b = float(b)
      c = a * b
      return c
  
  
  def division(a, b):
      a = float(a)
      b = float(b)
      c = b / a
      return c
  
  
  def square(a):
      a = float(a)
      c = a * a
      return c
  
  
  def square_root(a):
      a = float(a)
      c = math.sqrt(a)
      return c
  
  
  class MyCalculator:
      result = 0
  
      def __init__(self):
          pass
  
      def add(self, a, b):
          self.result = addition(a, b)
          return self.result
  
      def subtract(self, a, b):
          self.result = subtraction(a, b)
          return self.result
  
      def multiply(self, a, b):
          self.result = multiplication(a, b)
          return self.result
  
      def divide(self, a, b):
          self.result = division(a, b)
          return self.result
  
      def square(self, a):
          self.result = square(a)
          return self.result
  
      def square_root(self, a):
          self.result = square_root(a)
          return self.result
  