gistfile1.txt

class Calculator
  def self.description
    "Performs basic mathematical operations"
  end
  
  # def instance methods
  #   calc = Calculator.new(7,2)
  # end
  
  def initialize(x, y)
    @x = x
    @y = y
  end
  
  def add
    @x + @y
  end
  
  def subtract
    @x - @y
  end
  
  def multiply
    @x * @y
  end
  
  def divide
    @x.to_f / @y
  end
end

# puts calc.description
# puts calc. add
# puts calc.subtract
# puts calc.multiply
# puts calc.divide