VAR1:=(2*CLOSE+HIGH+LOW)/4; VAR2:=LLV(LOW,34); VAR3:=HHV(HIGH,34); AA:=Ema((VAR1-VAR2)/(VAR3-VAR2)*100,13); BB:=EMA(0.667*REF(AA,1)+0.333*AA,2); XG:IF(crOSS(AA,BB) AND AA<20 ,30,0);