VART:=(CLOSE*2+HIGH+LOW)/4;SK:=EMA(VART,13)-EMA(VART,73);SD:=EMA(SK,2);ZDT:(OSS(SK,SD) AND SK<-0.04 AND (C-REF(C,1))/REF(C,1)>=0.03)OR (CROSS(SK,SD) AND SK<=-0.14 ) OR (CROSS(SK,SD) AND SK<=0.05 AND (V/MA(V,5)>2 OR C/REF(C,1)>0.035));