请老师们帮忙制作一个公式

见老注册用户都回：

zf:=c/ref(c,1)-1;

a3:=ref(zf>3/100 and c>ma(c,5) and between(v/ma(v,5),0.5,1),2) ;

a2:=every(zf>0 and zf<2/100,2);

a1:=v<ref(v,2), and ref(v,1)<ref(v,2);

xg:a3 and a2 and a1;

 多谢帮忙

见老注册用户都回：

zf:=c/ref(c,1)-1;

a3:=ref(zf>3/100 and c>ma(c,5) and between(v/ma(v,5),0.5,1),2) ;

a2:=every(zf>0 and zf<2/100,2);

a1:=v<ref(v,2), and ref(v,1)<ref(v,2);

xg:a3 and a2 and a1;