首页 -> 登录 -> 注册 -> 回复主题 -> 发表主题
光行天下 -> MATLAB,SCILAB,Octave,Spyder -> fminsearch应用出错 [点此返回论坛查看本帖完整版本] [打印本页]

fanyushan 2010-07-19 14:12

fminsearch应用出错

我的M文件如下: T1'\!6_5  
function [G5]=fun(x); M`E}1WNQ?]  
syms n1 n2 k1 k2 d; EK&0Cn3z  
[subwave,nsub]=textread('subout.txt','%f %f'); *,~L_)vWO  
[filmwave,filmtran]=textread('filmtr.dat','%f %f'); WpRM|"CF  
[p,q]=size(subwave); ?]o(cz  
for j=1:p; v8n^~=SH  
    wavel(j)=subwave(j,1); }$ Kd-cj+  
    n(j)=n1+n2/((wavel(j))^2); U*,\UF  
    k(j)=k1*exp(k2/wavel(j)); '8(UiB5d  
    N(j)=n(j)-i*k(j); X#zp,7j?  
    phase(j)=2*pi*N(j)*d/wavel(j); S)/548=`  
    ns(j)=nsub(j,1); WBb*2  
    B(j)=cos(phase(j))+ns(j)*i*sin(phase(j))/N(j); HJP~ lg  
    C(j)=i*N(j)*sin(phase(j))+ns(j)*cos(phase(j)); S#<y_w%  
    T(j)=4*ns(j)/((B(j)+C(j))*conj(B(j)+C(j))); >?6HUUQ  
    ts(j)=1-((1-ns(j))/(1+ns(j)))^2; F!p;]B  
    t1(j)=ts(j)*T(j); H!>>|6OPF  
    tf(j)=filmtran(j,1)/100; wuW{ 2+)B  
    difference(j)=(t1(j)-tf(j))^2; ?% A 2  
end {'z$5<|  
G=symsum(difference(j),1,401); *z.rOY= 8  
G1=subs(G,n1,sym('x(1)')); {s@ 0<!  
G2=subs(G1,n2,sym('x(2)')); Kr;=4xg=  
G3=subs(G2,k1,sym('x(3)')); 9hh~u -8L  
G4=subs(G3,k2,sym('x(4)')); j(k}NWPH  
G5=subs(G4,d,sym('x(5)')); z;ku*IV  
,eWLig  
X{<taD2~  
hljKBx ~  
在matlab下运行 !~vx|_$#  
>> options=optimset('tolfun',1e-8,'tolx',1e-8); %wI)uJ2  
>> [xmin,value,flag,output]=fminsearch(@fun,[1.7,4000,0.005,400,500],options); o\; hF3   
dZI["FeO&d  
wNn=JzP  
结果出错如下: E+LQyvF[  
R[)bGl6#  
??? Conversion to double from sym is not possible. 0s\ -iub=d  
Error in ==> fminsearch at 175 .!Kqcz% A  
fv(:,1) = funfcn(x,varargin{:}); 5&O%0`t  
KY%{'"'u  
哪位高手给看看 adAdX;@e`  
fanyushan 2010-07-21 07:47
哪位高人告诉我,错误在哪里呀。M文件复制到命令行,执行,一切正常,就是在求解多元函数0值时,不知道哪里错了。 ]>Gi_20*.  
M&<qGV$A  
es~1@Jb  
万分感谢呀
查看本帖完整版本: [-- fminsearch应用出错 --] [-- top --]

Copyright © 2005-2026 光行天下 蜀ICP备06003254号-1 网站统计