Function: product(band pass(product(tan(numbers('xry') if numbers("xxx") > numbers("yyy") else numbers('yxr')), numbers('xry') if numbers("yyy") > numbers("xxx") else numbers('yxr'))), product(tan(numbers("yyy") if numbers('xry') > numbers('yxr') else numbers("xxx")), numbers('xry') if numbers('yxr') > numbers("xxx") else numbers("yyy")))
