Function: log(gradient[1](log(numbers("yxx"), numbers("xxy")) if numbers("xxy") > numbers("yxx") else numbers("xxy") if log(numbers("yxx"), numbers("xxy")) > numbers("yxx") else numbers('rep')), numbers("xxy") if numbers('rep') if numbers("xxy") > numbers("yxx") else log(numbers("yxx"), numbers("xxy")) > log(numbers("yxx"), numbers("xxy")) else numbers("yxx"))