RSV55:=(CLOSE-LLV(LOW,45))/(HHV(HIGH,45)-LLV(LOW,45))*100;
K55:=MA(RSV55,3);
D55:MA(K55,3),COLORRED,LINETHICK1;
RSV21:=(CLOSE-LLV(LOW,21))/(HHV(HIGH,21)-LLV(LOW,21))*100;
K21:=MA(RSV21,3);
D21:=MA(K21,3);
DRAWTEXT((D21-REF(D21,1))>0,D55,'←'),COLORLIRED,LINETHICK5;
DRAWTEXT((D21-REF(D21,1))<0,D55,'←'),COLORGREEN,LINETHICK5;
10;