24小时热门版块排行榜    

查看: 284  |  回复: 2
当前主题已经存档。
【悬赏金币】回答本帖问题,作者土虫将赠送您 20 个金币
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

土虫

[求助] 关于matlab画图!重赏!

[m1,m2,m3,m4,m5,m6,m7,m8,m11,m12,m13,m14,m21,m22,m31,m32,m33,m34]=dsolve('Dm1=m11-m1','Dm2=m1-m2','Dm3=m2-m3','Dm4=m3-m4','Dm5=m4-m5','Dm6=m5-m6','Dm7=m6-m7','Dm8=m22-m8','Dm11=m6-m11','Dm12=m11-m2','Dm13=m2-m4','Dm14=m4-m6','Dm21=m22-m1','Dm22=m1-m22','Dm31=m7-m8','Dm32=m8-m3','Dm33=m3-m5','Dm34=m5-m7','t')


matlab里解以上方程组,得到m1 = 5*Sum(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*exp(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*t)*C[_a],_a = 1 .. 6)+C12+Sum(exp(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*t)*C[_a],_a = 1 .. 6)+10*Sum(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)^3*exp(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*t)*C[_a],_a = 1 .. 6)+10*Sum(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)^2*exp(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*t)*C[_a],_a = 1 .. 6)+5*Sum(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)^4*exp(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*t)*C[_a],_a = 1 .. 6)+Sum(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)^5*exp(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*t)*C[_a],_a = 1 .. 6)

m2=……
……


请问如何将m1和t 的关系图画出来?用plot画的时候提示plot(m1,t)
??? Error using ==> plot
Conversion to double from sym is not possible.请问我如何画,重赏!!
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

土虫

对应一个t,m应该都有一个值?但是上面那些_Z根本解不了

对应一个t,m应该都有一个值?但是上面那些_Z根本解不了
3楼2007-12-27 14:20:30
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 3 个回答

dnp

荣誉版主 (知名作家)

小木虫浪子

优秀版主

这样肯定是不行的,因为matlab中画图的话必须得取值才能画出来。所以就看你想画什么样的图,准确地说是你想画坐标范围多大的图。
所以你可以对t取一系列连续的值,如 t=0.01:0.01:1,有1000个点,然后求出每个点下的m值,然后再plot(t,m)即可。这里你可以扩大t的取值范围。
What would Jesus do?
2楼2007-12-27 13:34:43
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
不应助 确定回帖应助 (注意:应助才可能被奖励,但不允许灌水,必须填写15个字符以上)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[公派出国] 售SCI-T0P文章,我:8O.5.5.1.O.54,科目齐全,可+急 +3 zSbvVX9JFl9J 2026-11-09 3/150 2026-11-10 01:40 by FChKX8meu1ds
[考博] 27博士申请 +3 白白白ly 2026-11-09 3/150 2026-11-09 21:39 by szq0819
[文学芳草园] 厉娜 +3 张丹枫1991 2026-11-09 5/250 2026-11-09 16:53 by 张丹枫1991
[考博] 售SCI一区T0P文章,我:8.O.55.1.O54,科目全,可伽急 +5 kvewwGtKktqB 2026-11-04 12/600 2026-11-09 13:26 by Equinoxhua
[考研] 售SCI-T0P文章,我:8O.5.5.1.O.54,科目齐全,可+急 +5 ttH3f1oA6ace 2026-11-04 15/750 2026-11-09 13:19 by Equinoxhua
[硕博家园] 售SCI一区T0P文章,我:8O.55.1.O.54,科目全,可伽急 +5 5sJFDKp2kwuI 2026-11-06 16/800 2026-11-09 11:47 by GwrQVVR6Oenx
[考博] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 +5 5sJFDKp2kwuI 2026-11-06 15/750 2026-11-09 11:41 by GwrQVVR6Oenx
[硕博家园] 售SCI一区文章,我:8O5.5.1.O5.4,科目全,可伽急 +4 5sJFDKp2kwuI 2026-11-06 10/500 2026-11-09 08:00 by IhnEQauGmT3K
[考研] 售SCI一区T0P文章,我:8O.55.1.O.54,科目全,可伽急 +3 5sJFDKp2kwuI 2026-11-06 12/600 2026-11-09 06:32 by l48hFd8Nwae2
[公派出国] 售SCI一区文章,我:8.O.55.1.O.54,科目齐全,可伽急 +4 5sJFDKp2kwuI 2026-11-06 8/400 2026-11-09 00:14 by l48hFd8Nwae2
[教师之家] 售SCI一区T0P文章,我:8.O.55.1.O.54,科目齐全,可+急 +4 5sJFDKp2kwuI 2026-11-06 8/400 2026-11-08 23:01 by l48hFd8Nwae2
[教师之家] 售SCI一区T0P文章,我:8.O.55.1.O.5.4,科目全,可+急 +5 5sJFDKp2kwuI 2026-11-06 9/450 2026-11-08 22:46 by l48hFd8Nwae2
[教师之家] 延安大学回应“副教授留绝笔信”:确已离世,正核实举报内容 +3 yexuqing 2026-11-04 5/250 2026-11-07 13:22 by 苏东坡二世
[公派出国] 售SCI一区T0P文章,我:8.O.55.1.O.54,科目齐全,可+急 +5 ttH3f1oA6ace 2026-11-04 10/500 2026-11-06 16:12 by 5sJFDKp2kwuI
[硕博家园] 售SCI一区文章,我:8O5.5.1.O5.4,科目全,可伽急 +4 ttH3f1oA6ace 2026-11-04 11/550 2026-11-06 16:10 by 5sJFDKp2kwuI
[公派出国] 售SCI一区文章,我:8.O.551.O.5.4,科目全,可伽急 +6 ttH3f1oA6ace 2026-11-04 12/600 2026-11-06 16:10 by 5sJFDKp2kwuI
[硕博家园] 售SCI一区T0P文章,我:8O.55.1.O.5.4,科目齐全,可+急 +6 kvewwGtKktqB 2026-11-04 16/800 2026-11-06 05:00 by qL1cU46YIdK0
[考研] 售SCI一区T0P文章,我:8.O55.1.O.54,科目全,可十急 +4 ttH3f1oA6ace 2026-11-04 10/500 2026-11-06 02:04 by qL1cU46YIdK0
[硕博家园] 售SCI-T0P文章,我:8O.5.5.1.O.54,科目齐全,可+急 +3 ttH3f1oA6ace 2026-11-04 9/450 2026-11-06 02:02 by qL1cU46YIdK0
[硕博家园] 售SCI一区T0P文章,我:8.O55.1.O.54,科目全,可十急 +4 hNpp4Y2CGvSC 2026-11-04 12/600 2026-11-06 01:53 by qL1cU46YIdK0
信息提示
请填处理意见