求改股票公式，添加四舍五入，小数点位数？

通达信ROUND2这个函数是求小数位数的。ROUND2(X,2)表示四舍五入到2位小数，ROUND2(X,3)表示四舍五入到3位小数。
H1:ROUND2(EMA(C,8),2);
H2:ROUND2(EMA(H1,20),2);
VAR1:=(HHV(H,36)-C)/(HHV(H,36)-LLV(L,36))*100;
VAR2:=SMA(VAR1,5,1);
VAR3:=SMA(VAR2,8,1);
VAR4:=CROSS(VAR2,VAR3) AND VAR3< 20;
VAR5:=C>LLV(C,60)*1.13 AND VAR4;
VAR6:=IF(C>200,VAR4,VAR5);
STICKLINE(H1>H2,H1,H2,0,1),COLORRED;
STICKLINE(H1< H2,H1,H2,0,1),COLORGREEN;
DRAWICON(CROSS(H1,H2),H1,1);
DRAWICON(CROSS(H2,H1),H2,2);
H3:H1-H2+2,COLORF00FFF;
H4:2.15,POINTDOT,COLORGREEN;
DRAWICON(CROSS(H3,H4),H3,1);
DRAWICON(CROSS(H4,H3),H4,2);