RSV3:=(CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100;K3:=SMA(RSV3,9,1);D3:=SMA(K3,9,1);LOWV:=LLV(LOW,9);HIGHV:=HHV(HIGH,9);RSV:=EMA((CLOSE-LOWV)/(HIGHV-LOWV)*100,3);K:=EMA(RSV,3);D:=MA(K,3);:K3<50 AND K3<D3 AND OSS(K,D) AND D<50;