该公式计算7条均线（5/10/20/30/60/120/250日）及其角度，通过均线位置关系、价格与均线偏离、角度方向、连续下跌等条件，生成“低买”和“超低”两个信号。使用时，在K线图副图或主图叠加，信号出现时提示买入参考。
MA1:=MA(CLOSE, 5);
MA2:=MA(CLOSE, 10);
MA3:=MA(CLOSE, 20);
MA4:=MA(CLOSE, 30);
MA5:=MA(CLOSE, 60);
MA6:=MA(CLOSE, 120);
MA7:=MA(CLOSE, 250);
A1:=ATAN((MA1/REF(MA1,1)-1)*100)*180/3.1416;
A2:=ATAN((MA2/REF(MA2,1)-1)*100)*180/3.1416;
A3:=ATAN((MA3/REF(MA3,1)-1)*100)*180/3.1416;
A4:=ATAN((MA4/REF(MA4,1)-1)*100)*180/3.1416;
A5:=ATAN((MA5/REF(MA5,1)-1)*100)*180/3.1416;
A6:=ATAN((MA6/REF(MA6,1)-1)*100)*180/3.1416;
A7:=ATAN((MA7/REF(MA7,1)-1)*100)*180/3.1416;
DW1:=MA1<MA3 AND MA2<MA3 AND (O<MIN(MA1,MIN(MA2,MA3)) OR REF(C<MIN(MA1,MIN(MA2,MA3)),1)=1);
DW2:=MA1>MA3 AND MA2>MA3 AND (O<MIN(MA1,MA2) OR REF(C<MIN(MA1,MA2),1)=1);
DW3:=(COUNT(C>MA1,3)=0 OR (COUNT(C>MA1,3)=1 AND C>MA1)) OR (COUNT(A1>0,3)=0 OR (COUNT(A1>0,3)=1 AND A1>0));
DW4:=((COUNT(L<REF(L,1) AND H<REF(H,1),3)>=2) OR (COUNT(C<REF(C,1) AND C<O,3)>=2));
低买:(C>O OR C>REF(C,1)) AND (DW1 OR DW2 OR DW3);
超低:(C>O OR C>REF(C,1)) AND (DW1 OR DW2 OR DW3) AND (DW4);
