VAR2:=(2*CLOSE+HIGH+LOW+OPEN)/5;VAR3:=LLV(LOW,34);VAR4:=HHV(HIGH,34);SK:=EMA((VAR2-VAR3)/(VAR4-VAR3)*100,13);SD:=EMA(SK,2);REF(SD,2)>REF(SD,1) AND SD>REF(SD,1);