Function: minus(product(divide(2 *(gradient[1](numbers("per") if numbers('rrr') > numbers('yyx') else numbers("yxx"))), gradient[1](numbers("per") if numbers("yxx") > numbers('yyx') else numbers('rrr'))), 2 *(gradient[1](numbers('yyx') if numbers('rrr') > numbers("per") else numbers("yxx")))), divide(2 *(gradient[1](numbers('yyx') if numbers('rrr') > numbers("per") else numbers("yxx"))), gradient[1](numbers('rrr') if numbers("per") > numbers("yxx") else numbers('yyx'))))
