add functions to calculator

Author: aullanisa

calculator.py

@@ -8,19 +8,4 @@ def subtract(a,b):
 	return a-b
 
 def divide(a,b):
-	return a/b
-
-
-
-def square(a):
-	return a * a
-
-
-def cube(a):
-	return a * a * a
-
-
-if __name__ == "__main__":
-	print("I'm going to use the calculator functions to multiply 5 and 6")
-	x = multiply(5, 6)
-	print(x)
+	return a/b