Function: band pass(exp(numbers('rep'), numbers('ryy')) if numbers('rep') if numbers('ryy') > numbers('yxr') if numbers('rep') > numbers('ryy') else exp(numbers('rep'), numbers('ryy')) else exp(numbers('rep'), numbers('ryy')) > numbers('rep') else numbers('yxr') if numbers('rep') > exp(numbers('rep'), numbers('ryy')) else numbers('ryy'))