Function: minus(numbers("xxx"), numbers("xxy")) if exp(minus(numbers("xxx"), numbers("xxy")), numbers("xxx")) > numbers("xxx") if minus(numbers("xxx"), numbers("xxy")) > numbers("xxy") else exp(minus(numbers("xxx"), numbers("xxy")), numbers("xxx")) else 2 *(numbers("xxy") if minus(numbers("xxx"), numbers("xxy")) > numbers("xxx") else exp(minus(numbers("xxx"), numbers("xxy")), numbers("xxx")))