=ROUND(SUM(K6:K8)/C16,2)这个怎么操作

=ROUND(SUM(K6:K8)/C16,2)这个怎么操作 k1+k2+k3+k4+k5+k6+k7+k8=20 3k1+3.5k2+4k3+4.5k4+5k5+5.5k6+6k7+6.5k8=89.5 如何修改此函数的列和行｛=SUM(IF((K8:K19>0.2)*(K8:K19 小星星点读笔k6和k8哪个好 EXCLE表里{=SUM(ROUND(AJ5:AJ239, =SUM(INDIRECT(K8:K&ROW()-1))这条公式是什么意思 =IF(SUM(C1:D1)0,SUM(D1:I1)/SUM(C1:D1)*100,0) 烦请知者具体讲解 劳烦赐教 解释这个函数=IF(AX25>0,IF(SUM(ROUND(BH25,1),ROUND(BJ25,1),ROUND(BL25,1))100,1,),) sum(A1:A10+B1:B10)公式=sum(A1:A10+C1:C10)是否与=SUM（A1：A10)+SUM(C1：C10)一个意思 matlab解符号方程组sym T;k1=0.49;k_1=1755;k2=9.2;k3=40;k_3=0.5;k4=4.6;k5=5;k6=40;k_6=0.5;k7=4.6;k8=5;f1=k_1*b+k8*z-k1*T*a;f2=k1*T*a-k_1*b-k2*T*b;f3=k2*T*b+k_3*f-k3*c;f4=k3*c-k_3*f-k4*f;f5=k4*f-k5*g;f6=k5*g+k_6*y-k6*x;f7=k6*x-k_6*y-k7*y;f8=k7*y-k =IF(A3,SUM(B$2:B2)-SUM(C$1:C1),) 看不懂 =IF(AND(ROUND(MAX(SUM(B22,D22)),2)=0,ROUND(MIN(SUM(B22,D22)),2)=0),校验通过,校验失败) =ROUND(IF(SUM(G14*0.0075*$M$2)>(G14-K14),G14-K14,SUM(G14*0.0075*$M$24)),2) javascript如何取小数点后四位数?function getResult() { var sum; sum=parseInt(document.form1.m9.value)*7.05; document.form1.m10.value=Round(sum,2); } matlab小段代码求解释function [R,mx,my,mse]=circle_detect(x,y)N=length(x);a1=2*(sum(x)^2-N*sum(x.*x));a2=2*(sum(x)*sum(y)-N*sum(x.*y));b1=a2;b2=2*(sum(y)^2-N*sum(y.*y));c1=sum(x.*x)*sum(x)-N*sum(x.^3)+sum(x)*sum(y.*y)-N*sum(x.*y.*y);c2=sum(x.*x =ROUND(SUM(C14:E14),2)有人知道这是什么意思吗 =ROUND(SUM(D1:D3)/A4,2)怎样才能在这个单元格里同时显示kg/m3 若需计算某工作表中A1B1C1单元格的数据之和,需使用下述哪个计算公式 A.=COUNT(A1,C1) B=SUM(A1.C1)C.=sum(A1.C1) D.=MAX(A1.C1)