CREAR UNA CALCULADORA CIENTIFICA

def add(a, b):
  return a + b
    
def subtract(a, b): 
  return a - b
    
def multiply(a, b):
  return a * b
def divide(a, b):
  return a / b
    
#definte the function
add(1, 2)
#3
subtract(4, 1)
#3
multiply(2, 4)
#8
divide(8, 2)
#4