Function: divide(gradient[0](sum(2 *(numbers("yxx") if numbers('rrr') > numbers('yxr') else numbers('xry')), numbers('yxr') if numbers('xry') > numbers("yxx") else numbers('rrr'))), sum(2 *(numbers('xry') if numbers("yxx") > numbers('yxr') else numbers('rrr')), numbers('rrr') if numbers('xry') > numbers('yxr') else numbers("yxx")))
