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color="#000066">[此贴子已经被作者于2005-11-16 14:55:04编辑过]</font></div><br /> <br /> <br /> <br /> <br /> </div> <div class="postmsg"><br /> <br /> 高老师啊，你这个优化出来的结果和我的一样啊，还是我说的那个问题啊？麻烦你再仔细看看我的那篇贴？不甚感激！.ZMX文件在我的附件里，请指教！<br /> <br /> <br /> <br /> <br /> </div> <div class="postmsg"><br /> <br /> 按照这个方法我自己试验了三元方程，效果是有的，毕竟这种方法是利用了zemax optimization的局部优化算法。初值问题也是一样，因为是局部搜索算法所以初值的影响是比较大的。同理可以在codev中试验一下这个方法，codev的优化算法是全局搜索的，估计初值的影响就不大了，谁有兴趣可以试一下呵呵<br /> <br /> <br /> <br /> <br /> </div> <div class="postmsg"><br /> <br /> 搂上的说法完全正确。多元非线性方程组的各种算法，不能自动找出所有解，只能由初值出发，解出最近解。有时解的过程中，跨过了方程组的发散点，会得到无解的结果，若实际问题有解，是不是方法错了呢？不是的，此时应用手动的方法找初解（要跨过发散点），再进入优化找精确解。你给的方程组我解出了三组解（原系统是三次方程组，一定有三组解，但不一定全是实数解，此方程组恰好有三组实数解），代入原方程组都成立。关键的问题是给出合理的初值，才能得到所希望的解。我在以后初级象差平衡的实例中，都是先找到初解，再求精确解的。<br /> <br /> <br /> <br /> <br /> </div> <div class="postmsg"><br /> <br /> <<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>明白了，高老师谢谢！</P><br /> <br /> <br /> <br /> <br /> </div> <div class="postmsg"><<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>高老师，我的问题就是怎么样能得到多元方程的所有解？如何给定初值？现在好象不好找规律。用MATLAB迭代是可以的！</P><br /> <<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>联系光学设计来看，就是如何得到最佳的初始结构？（只能用PWC进行初始计算吗？）</P></div> <div class="postmsg">真是太牛了，以前还没听说过<img src="static/image/smiley/default/em01.gif" smilieid="30" border="0" alt="" /></div> <div class="postmsg"><<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>增长见识!</P><br /> <<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>多谢高老师解答!</P></div> <div class="postmsg">高老师，感觉您有几百年的积累吧。</div> <div class="postmsg">谢谢高老师的提供！<img src="static/image/smiley/default/em04.gif" smilieid="33" border="0" alt="" /><img src="static/image/smiley/default/em04.gif" smilieid="33" border="0" alt="" /></div> <div class="postmsg">挺好的资料阿<br /> <br /> 挺好的<br /> 谢谢昂,~~~~<br /> 简直就是经典</div> <div class="postmsg">高手...............................</div> <div class="postmsg">简直就是经典，我不能不佩服高老师，活学活用啊！</div> <div class="postmsg">金钱如何挣<br /> ，1块钱都不能下载吗</div> <div class="postmsg">简直就是经典，我不能不佩服高老师，活学活用啊！是一个创新</div> <div class="postmsg">大牛的理解和普通人不一样呀<img src="static/image/smiley/Tiger/13.gif" smilieid="151" border="0" alt="" /></div> <div style="height200px;"></div> </div> </div> </div> </div></div> </div> <!--autocomment filter by maxnum--> <div class="ft_wp"> <div id="ft" class=" cl"> <div id="flk" > <p> <a href="http://wpa.qq.com/msgrd?V=3&Uin=20600600&Site=光电工程师社区&Menu=yes&from=discuz" target="_blank" title="QQ"><img src="static/image/common/site_qq.jpg" alt="QQ" /></a><span class="pipe">|</span><a href="http://m.oecr.com" >手机版</a><span class="pipe">|</span><a href="http://so.oecr.com" title="站内搜索" target="_blank" >搜索</a><span class="pipe">|</span><a href="http://www.focaloptics.com" title="主办单位：武汉焦点光学技术有限公司" target="_blank" >焦点光学</a><span class="pipe">|</span><a 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