Function: minus(numbers("xxx"), numbers('rep')) if numbers('rep') if minus(numbers("xxx"), numbers('rep')) > numbers("xxx") else numbers('rrr') > gradient[1](numbers('rep') if minus(numbers("xxx"), numbers('rep')) > minus(numbers("xxx"), numbers('rep')) if numbers("xxx") > numbers('rep') else numbers('rrr') else numbers("xxx")) else numbers('rrr') if numbers("xxx") > minus(numbers("xxx"), numbers('rep')) else numbers('rep') if numbers("xxx") > numbers('rep') else minus(numbers("xxx"), numbers('rep'))