I-DEAS V6和I-DEAS NX12哪个更新I-DEAS V6是I-DEAS NX12的升级版吗?

I-DEAS V6和I-DEAS NX12哪个更新I-DEAS V6是I-DEAS NX12的升级版吗? 谁知道I-DEAS怎么样啊 请问在I-DEAS中,如何计算自由模态如题 请问在I-DEAS中,如何计算自由模态?计算步骤是怎样的?02x I-DEAS软件有谁知道这是个什么软件 用来干吗的? 【求助】请教关于变半径倒角问题i-deas中在同一条边上变径倒角只能给定开始和结束两个半径,能不能给定中间的半径?请赐教 设X是1xn的矩阵,XX^T（X乘以X的转置）=1,证明S=I-2XX^T是对称矩阵,S^2=I,记错～是nx1没错 一道英语题题啊啊1、Thousands of houses___by the floods in Guangxi last month A.destroy B.destroyed C.have destroyed D.were destroyed 2、Comrade Lei Feng is deas,but his spirit is still___A.alive B.awake C.alone D.afraid 3、Half os the fa 已知xi∈R+,i=1,2,…,n 求证不等式n/(n+1)≥x1/(nx1+x2)+x2/(nx2+x3)+…+xn/(nxn+x1)已知xi∈R+,i=1,2,…,n求证不等式 n/(n+1)≥x1/(nx1+x2)+x2/(nx2+x3)+…+xn/(nxn+x1)等号当且仅当x1=x2=…=xn时取得这个题是好像是可以通 lingo问题model:sets:weizhi/a b/:cap,m,n;ven/ v1 v2 v3 v4 v5 v6 /:dem,x,y;links(weizhi,ven):yunshu;endsetsmin=@sum(links(i,j):yunshu(i,j)*@sqrt((x(j)-m(i))^2+(y(j)-n(i))^2);@for(ven(j):@sum(weizhi(i):yunshu(i,j))>=dem(j));@for(weizhi(i):@sum(ven(j): V6是什么意思? i++和++i怎么理解? lingo程序改错 看一眼来@@model:sets:cities/v4,v1,v2,v3,v5,v6,v7,v9,v10,v11,v8/;roads(cities,cities):p,w,x;endsetsdata:p=函数；w=函数；enddatan=@size(cities);min=@sum(roads:w*x);@for(cities(i)|i#ne#l#and#i#ne#n:@sum(cities(j):p(i,j)*x(i,j 求教12导心电图的12条线就是12导联I、II、III、AVR、AVL、AVF V1 V2 V3 V4 V5 V6都具体代表什么意思 还12导心电图上面是有12条心电线吧 I say what I mean和I mean what I i i I I,