Function: round(minus(numbers("xxr"), numbers('xyy')) if gradient[2](minus(numbers("xxr"), numbers('xyy'))) > round(gradient[2](minus(numbers("xxr"), numbers('xyy'))), minus(numbers("xxr"), numbers('xyy'))) else numbers("xxr"), round(gradient[2](minus(numbers("xxr"), numbers('xyy'))), minus(numbers("xxr"), numbers('xyy'))))