Function: numbers("per") if log(numbers("per"), numbers("xxy")) > numbers("xxy") else product(log(numbers("per"), numbers("xxy")), numbers("per")) if log(numbers("per"), numbers("xxy")) > minus(product(log(numbers("per"), numbers("xxy")), numbers("per")) if numbers("xxy") > numbers("per") else log(numbers("per"), numbers("xxy")), product(log(numbers("per"), numbers("xxy")), numbers("per"))) else product(log(numbers("per"), numbers("xxy")), numbers("per"))