Function: square(numbers('xyy') if minus(numbers('xyy'), numbers("yxx")) > numbers("yxx") else numbers("yyy") if numbers("yxx") if numbers('xyy') > numbers('xyy') if minus(numbers('xyy'), numbers("yxx")) > numbers("yyy") else numbers("yxx") else minus(numbers('xyy'), numbers("yxx")) > minus(numbers('xyy'), numbers("yxx")) else numbers('xyy'))