Function: gradient[0](numbers('epe') if invert(numbers('epe') if numbers("xxx") > numbers('xyy') else numbers('epe')) > invert(numbers('xyy') if numbers("xxx") > numbers('epe') else numbers('epe')) if numbers('epe') > numbers('epe') else numbers("xxx") if numbers('epe') > numbers('epe') else numbers('xyy') else numbers("xxx") if numbers('epe') > numbers('epe') else numbers('xyy'))
