Function: minus(minus(divide(numbers("yxx"), numbers('ryy')), numbers("yxx")), divide(numbers("yxx"), numbers('ryy'))) if minus(divide(numbers("yxx"), numbers('ryy')), numbers("yxx")) > divide(numbers("yxx"), numbers('ryy')) else minus(divide(numbers("yxx"), numbers('ryy')), numbers("yxx")) if minus(minus(divide(numbers("yxx"), numbers('ryy')), numbers("yxx")), divide(numbers("yxx"), numbers('ryy'))) > numbers("yxx") else divide(numbers("yxx"), numbers('ryy'))