Function: invert(gradient[1](numbers('epe') if numbers('rrr') > max(numbers('xyy'), numbers('rrr')) else numbers('xyy')) if max(numbers('xyy'), numbers('rrr')) > max(numbers('xyy'), numbers('rrr')) if numbers('rrr') > numbers('epe') else numbers('xyy') else numbers('xyy'))
