Function: log(mean(2 *(sum(numbers("xxy"), numbers("per")) if numbers("per") > gradient[2](sum(numbers("xxy"), numbers("per"))) else numbers("xxy")), numbers("per") if numbers("xxy") > gradient[2](sum(numbers("xxy"), numbers("per"))) else sum(numbers("xxy"), numbers("per"))), 2 *(numbers("per") if gradient[2](sum(numbers("xxy"), numbers("per"))) > numbers("xxy") else sum(numbers("xxy"), numbers("per"))))
