| 查看: 921 | 回复: 14 | |||
| 当前主题已经存档。 | |||
| 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 | |||
[交流]
【求助】急,还是matlab 解方程求助!【已完成】
|
|||
|
用了yeyunxiao提供的解一般方程 结果都对,可用来解pr方程,结果都是符号,这是为什么,数据也检验好几次都没错,本人刚刚学,望请高手不吝赐教,syms v; f = 8.314* 77 / (v-0.00001649839676) - 0.025825/ (v^2+2*v*0.00001649839676 - 0.00001649839676^2) - 100000; v = solve(f,v) v = 8641733483570864607155275934720181524676991/(1914088313930278856981482166803696189440000000000*((242207590675292455113936516646304255883544074967378025331707206971586057602285690330878181207807615479640055200706696641271^(1/2)*10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000^(1/2))/10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000 + 12703585355945088984479032173729896672868785889114677239189359257/1324076147308127973621611831457867134646590601566632280064000000000000000)^(1/3)) + ((242207590675292455113936516646304255883544074967378025331707206971586057602285690330878181207807615479640055200706696641271^(1/2)*10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000^(1/2))/10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000 + 12703585355945088984479032173729896672868785889114677239189359257/1324076147308127973621611831457867134646590601566632280064000000000000000)^(1/3) + 2944691389338352349149/1383505805528216371200000 (3^(1/2)*i*(8641733483570864607155275934720181524676991/(1914088313930278856981482166803696189440000000000*((242207590675292455113936516646304255883544074967378025331707206971586057602285690330878181207807615479640055200706696641271^(1/2)*10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000^(1/2))/10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000 + 12703585355945088984479032173729896672868785889114677239189359257/1324076147308127973621611831457867134646590601566632280064000000000000000)^(1/3)) - (1/10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000*242207590675292455113936516646304255883544074967378025331707206971586057602285690330878181207807615479640055200706696641271^(1/2)*10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000^(1/2) + 12703585355945088984479032173729896672868785889114677239189359257/1324076147308127973621611831457867134646590601566632280064000000000000000)^(1/3)))/2 - ((242207590675292455113936516646304255883544074967378025331707206971586057602285690330878181207807615479640055200706696641271^(1/2)*10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000^(1/2))/10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000 + 12703585355945088984479032173729896672868785889114677239189359257/1324076147308127973621611831457867134646590601566632280064000000000000000)^(1/3)/2 - 8641733483570864607155275934720181524676991/(3828176627860557713962964333607392378880000000000*((242207590675292455113936516646304255883544074967378025331707206971586057602285690330878181207807615479640055200706696641271^(1/2)*10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000^(1/2))/10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000 + 12703585355945088984479032173729896672868785889114677239189359257/1324076147308127973621611831457867134646590601566632280064000000000000000)^(1/3)) + 2944691389338352349149/1383505805528216371200000 2944691389338352349149/1383505805528216371200000 - ((242207590675292455113936516646304255883544074967378025331707206971586057602285690330878181207807615479640055200706696641271^(1/2)*10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000^(1/2))/10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000 + 12703585355945088984479032173729896672868785889114677239189359257/1324076147308127973621611831457867134646590601566632280064000000000000000)^(1/3)/2 - (3^(1/2)*i*(8641733483570864607155275934720181524676991/(1914088313930278856981482166803696189440000000000*((242207590675292455113936516646304255883544074967378025331707206971586057602285690330878181207807615479640055200706696641271^(1/2)*10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000^(1/2))/10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000 + 12703585355945088984479032173729896672868785889114677239189359257/1324076147308127973621611831457867134646590601566632280064000000000000000)^(1/3)) - (1/10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000*242207590675292455113936516646304255883544074967378025331707206971586057602285690330878181207807615479640055200706696641271^(1/2)*10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000^(1/2) + 12703585355945088984479032173729896672868785889114677239189359257/1324076147308127973621611831457867134646590601566632280064000000000000000)^(1/3)))/2 - 8641733483570864607155275934720181524676991/(3828176627860557713962964333607392378880000000000*((242207590675292455113936516646304255883544074967378025331707206971586057602285690330878181207807615479640055200706696641271^(1/2)*10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000^(1/2))/10389200852564950573550137526405054421261259377954756445650428924947602420218991079181495985174733616228310114631680000000000000000000000000000 + 12703585355945088984479032173729896672868785889114677239189359257/1324076147308127973621611831457867134646590601566632280064000000000000000)^(1/3)) [ Last edited by nono2009 on 2009-9-21 at 19:28 ] |
» 猜你喜欢
综述论文作为代表作会不会影响评审专家的印象分?
已经有9人回复
我的国基提前知道中了,可是同事的操作让我实在接受不了,怎么会有这样的人
已经有6人回复
应该是93bebmhtak前后十一个字符比较关键
已经有20人回复
2026国自然放榜时间
已经有9人回复
这样的filecode谁见过
已经有22人回复
据悉今年马上要出结果了
已经有6人回复
面上项目filecode邪修
已经有7人回复
关于代码变化问题,想知道的进来
已经有22人回复
filecode与中标关系的预测
已经有5人回复
fileCode有新解读?
已经有18人回复
nono2009
超级版主 (文学泰斗)
No gains, no pains.
-

专家经验: +21105 - 仿真EPI: 1
- 应助: 28684 (院士)
- 贵宾: 513.911
- 金币: 2555230
- 散金: 27828
- 红花: 2148
- 沙发: 66666
- 帖子: 1602255
- 在线: 65200.9小时
- 虫号: 827383
- 注册: 2009-08-13
- 性别: GG
- 专业: 工程热物理与能源利用
- 管辖: 科研家筹备委员会
10楼2009-09-20 21:59:33
monitor2885
至尊木虫 (知名作家)
队长
- 应助: 6 (幼儿园)
- 贵宾: 0.339
- 金币: 40022.5
- 散金: 147
- 红花: 22
- 帖子: 5062
- 在线: 2187.8小时
- 虫号: 701577
- 注册: 2009-02-15
- 性别: GG
- 专业: 生态系统生态学

2楼2009-09-20 13:43:24
zhaoshans
铁杆木虫 (小有名气)
- 应助: 0 (幼儿园)
- 金币: 5289.6
- 红花: 1
- 帖子: 260
- 在线: 39小时
- 虫号: 466956
- 注册: 2007-11-24
- 性别: MM
- 专业: 环境工程
3楼2009-09-20 13:44:43
4楼2009-09-20 13:52:45










回复此楼
20