Function: logn(2 *(divide(numbers("yxx"), numbers('yxy'))) if numbers("yxx") > divide(numbers("yxx"), numbers('yxy')) else numbers('yxy')) if gradient[1](logn(2 *(divide(numbers("yxx"), numbers('yxy'))) if numbers("yxx") > numbers('yxy') else divide(numbers("yxx"), numbers('yxy')))) > 2 *(divide(numbers("yxx"), numbers('yxy'))) if numbers('yxy') > divide(numbers("yxx"), numbers('yxy')) else numbers("yxx") else 2 *(divide(numbers("yxx"), numbers('yxy')))