The first formula is: choose the time when the 30-day moving average crosses the 250-day moving average.

X 1:CROSS(MA(C，30)，MA(C，250))；

The second formula is: the stock price falls back above the 250-day moving average for more than 15 trading days, and fluctuates sideways within the range of 15%.

M250:=MA(C，250)；

t:= bars last(H & lt； m250)；

HH:=HHV(H， 15)；

LL:=LLV(L， 15)；

HHT:=HHV(H，T+ 1)；

x 1:= T & gt； 15;

X2:=LLV(L，5)= LL；

X3:= HHT * 0.9 & gt； HH；

x4:=(HH-LL)/HH & lt； 15/ 100;

ZRXG:x 1 * X2 * X3 * X4；

For example, the following signal