这个公式画出来是低点的弧线。如何改成画高点的弧线？谢谢！
n=10 k=3

z:=zig(4,n);zf:=refx(ref(z,1)<ref(z,2) and z>ref(z,1),1);
tt:=BARSLAST(z=l);
tend:=DATACOUNT-tt[DATACOUNT-1]-1;
dd:=zf;
sd:=sum(dd,0);
sdd:=sd[datacount]-sd+1;
wx1:=barssince(sdd=k);
wx2:=barssince(sdd=k-1);
wx3:=barssince(sdd=k-2);
ry1:=hhv((wx1=0)*L,0);
ry2:=hhv((wx2=0)*L,0);
ry3:=hhv((wx3=0)*L,0);
rx2:=hhv((wx2=0)*wx1,wx1+1);
rx3:=hhv((wx3=0)*wx1,wx1+1);
x2:=rx2[datacount];
x3:=rx3[datacount];
y1:=ry1[datacount];
y2:=(ry2[datacount]-ry1[datacount]);
y3:=(ry3[datacount]-ry1[datacount]);
xy:=POW(x2,2)+POW(y2,2);
e:=(x3*xy/x2-(x3*x3+y3*y3))/(y3-x3*y2/x2);
d:=-(y2*e+xy)/x2;
y1:=POW((d*d+e*e)/4-POW((wx1+d/2),2),0.5);
y2:=-POW((d*d+e*e)/4-POW((wx1+d/2),2),0.5);
c1:=ref(L,wx1)-ref(y1,wx1);
up:=y1+c1;
c2:=ref(L,wx1)+ref(y1,wx1);
dw:=y2+c2;

out1:=abs(z[tend]-up[tend])<0.01;
out2:=abs(z[tend]-dw[tend])<0.01;
out:if(out1,up,if(out2,dw,0)),COLORMAGENTA;

ljmswb908 附帶上了此圖片:

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最初由 ljmswb908 發表
这个公式画出来是低点的弧线。如何改成画高点的弧线？谢谢！

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