Function: min(gradient[1](numbers('epe')), numbers('epe')) if gradient[1](numbers('epe')) > min(gradient[1](numbers('epe')), numbers('epe')) if gradient[1](numbers('epe')) > numbers('epe') else sqrt(min(gradient[1](numbers('epe')), numbers('epe'))) else sqrt(min(gradient[1](numbers('epe')), numbers('epe')))