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lxc_422

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[求助] 求解未知矩阵中的元素和两个未知参数 已有1人参与

求解未知矩阵中的元素和两个未知参数
11组对应点坐标如下:
      xd'                          yd'                         xd                       yd
0.0652159           -1.572161316        -0.00570236        -1.603449023
-0.680626624        -1.065779492        -0.769705124        -1.106435106
-1.36061634        0.993203497        -1.365512259        1.03582211
0.807772476        -1.089514007        0.766290919        -1.109096709
1.231867919        -1.389880866        1.176930676        -1.396948586
1.233730389        -1.01252792        1.190127178        -1.025664023
-1.072034451        0.895695935        -0.95847968        0.933720757
-0.513887125        1.239563565        -0.415579937        1.271144542
-0.035274762        0.666129048        -0.068448263        0.652336125
0.90510805         0.93099805         0.924252392         0.901296746
-0.581255431        1.404273505        -0.474173542        1.447273167
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lxc_422

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引用回帖:
6楼: Originally posted by zaq123321 at 2014-11-25 10:05:24
Try this thing.  You first choose 11 points that satisfy a system. More specifically, suppose you know exact solution of the system. Like you make \lambda1=2, \lambda2=1 somthing like that. Set up ev ...

Could you recommend some references or eBooks about this problem? To my knowledge, most of existing methods need suitable initial values to solve this system of nonlinear equations.
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7楼2014-11-25 16:43:26
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zaq123321

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【答案】应助回帖

感谢参与,应助指数 +1
Write down the 11 eqs of the nonlinear system. Use some software, like Matlab, maple, mathematica to solve it. Hope it works.

This is the next stage of
http://muchong.com/bbs/viewthread.php?tid=8086054&authorid=405284

Good luck.
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2楼2014-11-24 23:44:16
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lxc_422

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引用回帖:
2楼: Originally posted by zaq123321 at 2014-11-24 23:44:16
Write down the 11 eqs of the nonlinear system. Use some software, like Matlab, maple, mathematica to solve it. Hope it works.

This is the next stage of
http://muchong.com/bbs/viewthread.php?tid=8 ...

Which function in Matlab should I use?
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3楼2014-11-25 08:45:26
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zaq123321

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引用回帖:
3楼: Originally posted by lxc_422 at 2014-11-25 08:45:26
Which function in Matlab should I use?...

I am not sure whether solve command can do it. Search matlab command to solve equation system. I don't have too much experience on Matlab but I know it should have command to solve this system.
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4楼2014-11-25 09:36:52
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