24小时热门版块排行榜    

查看: 1118  |  回复: 4

请叫我呼呼呼

铜虫 (小有名气)

[求助] 计算方程组报错 已有2人参与

我计算方程组 出现了错误:不应为matlab表达式
程序如下
syms a b c d e f g h i j k l n;
[a,b,c,d,e,f,g,h,i,j,k,l,n]=solve('0.959313*a=b*n','1.003773*b*n=c*d','0.964235*a*d=e*n','0.994909*e*n=f*x3','1.002046*f=g','1.052621*g*n=h*i','1.04343*g*n=c*g','1.045567*f*n=g*x3,'0.988734*h=k*l','n=a+b+c+d+e+f+g+h+i+j+k+l','k=l','116*b+18*c+98*d+156*e+138*f+138*g+122*h+16*i+120*g+108*k+136*l=58','3*a+6*b+6*d+9*e+9*f+9*g+8*h+i+9*g+7*k+9*l=3')


大神们看看,请指点指点
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

TX灌水员

木虫 (小有名气)

【答案】应助回帖

★
感谢参与,应助指数 +1
jjdg: 金币+1, 感谢参与 2017-07-04 18:25:18
'1.045567*f*n=g*x3,'
2楼2017-07-04 13:49:36
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

请叫我呼呼呼

铜虫 (小有名气)

引用回帖:
2楼: Originally posted by TX灌水员 at 2017-07-04 13:49:36
'1.045567*f*n=g*x3,'

贴错东西了  里面还有两个x3  都是c
3楼2017-07-04 13:52:26
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

dingd

铁杆木虫 (职业作家)

【答案】应助回帖

★ ★
感谢参与,应助指数 +1
jjdg: 金币+2, 感谢参与 2017-07-04 18:25:50
数值解的话多解吧:
1:
a: 5.99241095286238E-11
b: 0.473833443902075
n: 1.01179905514343E-10
c: 7.41136299359339E-10
d: 0.0779402204026616
e: 0.00642329506949857
f: -0.000889040773767275
g: -0.000890859752289501
h: 0.000479134556912065
i: -8.95434856002129E-9
k: -0.0217654916643481
l: -0.0217654916643675
j: -0.51336520182144

2:
a: 0.00115490700530515
b: 0.00207662992608521
n: 0.533516969072133
c: 0.55668793100289
d: 0.00199770358608439
e: 4.16977327002886E-6
f: 3.97587866117351E-6
g: 3.98401871293259E-6
h: 7.56359869807979E-7
i: 2.95810173612375
k: 0.000864779231454107
l: 0.00086477923155397
j: -2.9882443830655
4楼2017-07-04 15:23:31
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

请叫我呼呼呼

铜虫 (小有名气)

引用回帖:
4楼: Originally posted by dingd at 2017-07-04 15:23:31
数值解的话多解吧:
1:
a: 5.99241095286238E-11
b: 0.473833443902075
n: 1.01179905514343E-10
c: 7.41136299359339E-10
d: 0.0779402204026616
e: 0.00642329506949857
f: -0.000889040773767275
g: - ...

还想还有点写错了、   话说请问宁这个是怎么算出来的  我重新整理了一下 算出来后有警告   警告: The solutions are parametrized by the symbols:
z  = C_
z12 = C_
z13 = C_
z14 = C_
z15 = C_
z16 = C_
z17 = C_
z18 = C_
z21 = C_
z22 = C_
z23 = C_
有种说法是08版本一下的可以 或者用maple toolbox  是吗?
5楼2017-07-04 17:25:58
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 请叫我呼呼呼 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[职场人生] 40+中年人失业后,还能找到好工作吗? +10 xqy2009 2026-10-13 12/600 2026-10-15 19:24 by lpwang
[基金申请] 申请科研项目纯靠实力能成功吗? 200+7 David1982 2026-10-13 11/550 2026-10-15 10:30 by zyqchem
[硕博家园] 极限拉扯,如何抉择 +11 Isak0320 2026-10-12 15/750 2026-10-14 21:55 by 猫鱼不是鱼
[论文投稿] 二审4个多月了还是Awaiting Reviewer Scores 10+3 纳斯达克ML 2026-10-11 4/200 2026-10-14 17:30 by babero
[有机交流] OpenAI又攻克数学难题了,离AI做有机合成还有多远? +8 wangyl_123 2026-10-10 13/650 2026-10-14 15:12 by zuesli
[教师之家] 课题组会帮你通过考核么? +4 好运来~9527 2026-10-10 7/350 2026-10-13 08:41 by xli1984
[公派出国] 售一区SCI文章T0P,我:8O.551.O54,科目全,可十急 +5 qR2AdCWTVtkw 2026-10-09 9/450 2026-10-11 22:34 by XQNyDCa1Tk5n
[公派出国] 售SCI一区文章,我:8O5.5.1.O5.4,科目全,可伽急 +5 qR2AdCWTVtkw 2026-10-09 10/500 2026-10-11 22:26 by XQNyDCa1Tk5n
[找工作] 售SCI一区T0P文章,我:8.O55.1.O.54,科目全,可十急 +5 qR2AdCWTVtkw 2026-10-09 8/400 2026-10-11 22:26 by XQNyDCa1Tk5n
[考博] 售SCI一区T0P文章,我:8.O55.1.O.54,科目全,可十急 +5 qR2AdCWTVtkw 2026-10-09 9/450 2026-10-11 22:15 by XQNyDCa1Tk5n
[考博] 售SCI一区文章,我:8.O.55.1.O.54,科目齐全,可伽急 +3 qR2AdCWTVtkw 2026-10-09 7/350 2026-10-11 22:11 by XQNyDCa1Tk5n
[教师之家] 售SCI文章,我:8O5.5.1.O.54,科目齐全,可+急 (EPI+-1)(金币-50) +5 qR2AdCWTVtkw 2026-10-09 10/500 2026-10-11 22:06 by XQNyDCa1Tk5n
[教师之家] 售SCI一区T0P文章,我:8.O.55.1.O.5.4,科目全,可+急 (EPI+-1)(金币-50) +5 qR2AdCWTVtkw 2026-10-09 10/500 2026-10-11 14:25 by VOMexwnDzOFZ
[教师之家] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 (EPI+-1)(金币-50) +4 qR2AdCWTVtkw 2026-10-09 7/350 2026-10-11 14:05 by VOMexwnDzOFZ
[考研] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 +5 qR2AdCWTVtkw 2026-10-09 8/400 2026-10-11 13:51 by VOMexwnDzOFZ
[硕博家园] 售SCI-T0P文章,我:8O.5.5.1.O.54,科目齐全,可+急 +5 qR2AdCWTVtkw 2026-10-09 8/400 2026-10-11 13:45 by VOMexwnDzOFZ
[找工作] 售SCI一区T0P文章,我:8O.55.1.O.5.4,科目齐全,可+急 +3 qR2AdCWTVtkw 2026-10-09 7/350 2026-10-11 10:54 by VOMexwnDzOFZ
[找工作] 售SCI一区T0P文章,我:8O.55.1.O.5.4,科目齐全,可+急 +4 qR2AdCWTVtkw 2026-10-09 7/350 2026-10-11 10:34 by VOMexwnDzOFZ
[考博] 招收博士生一名 +3 mandolin 2026-10-10 3/150 2026-10-11 10:21 by 不是山谷!
[公派出国] 售SCI一区T0P文章,我:8O.55.1.O.54,科目全,可伽急 +4 qR2AdCWTVtkw 2026-10-09 4/200 2026-10-11 03:14 by M0zrYVSAnxpE
信息提示
请填处理意见