Incomplete or misformed expression or statement 出错求助

wangdianqun

麻烦楼主大哥帮帮我吧！fuction  F=mymfun(x)
f(1)=0.5*a.*exp(-0.25*pi*(x-b).^2);
f(2)=sqrt(1+(0.25*pi*a.*(x-b)).^2.*exp(-0.5*pi*(x-b).^2);
sym x
F(1)=quad(f(1),0,inf);
F(2)=quad(f(2),-inf,inf);
F=[F(1);F(2)];
然后我在Command里引用
>> x0=[-1000000;1000000];
>> options=optimset('Display','iter');
>> [x,fval]=fsolve(@opt30_5o,x0,options)
??? Error: File: opt30_5o.m Line: 3 Column: 57
Incomplete or misformed expression or statement.

Error in ==> fsolve at 180
        fuser = feval(funfcn{3},x,varargin{:});
怎么老出错？这是怎么回事？

[ 本帖最后由 eight 于 2008-5-5 17:08 编辑 ]

eight

??? Error: File: opt30_5o.m Line: 3 Column: 57
Incomplete or misformed expression or statement.

根据出错提示自行查看、调试解决

sigma665

f(2)=sqrt(1+(0.25*pi*a.*(x-b)).^2.*exp(-0.5*pi*(x-b).^2);

漏了一个括号

wangdianqun

fuction  F=mymfun(x)
f(1)=0.5*x(1).*exp(-0.25*pi*(x-x(2)).^2);
f(2)=sqrt(1+(0.25*pi*x(1).*(x-x(2))).^2.*exp(-0.5*pi*(x-x(2)).^2));
sym x
F(1)=quad(f(1),0,inf);
F(2)=quad(f(2),-inf,inf);
F=[F(1);F(2)];
然后我在Command里引用
>> x0=[-1000000;1000000];
>> options=optimset('Display','iter');
>> [x,fval]=fsolve(@opt30_5o,x0,options)
Warning: feval on script names will not work, or may work differently,
in a future version of MATLAB.  To make your code insensitive to any change
and to suppress this warning message:
- Either change the script to a function.
- Or use eval instead of feval.
The script file in question is opt30_5o.
> In fsolve at 180
??? Attempt to execute SCRIPT opt30_5o as a function.

Error in ==> fsolve at 180
        fuser = feval(funfcn{3},x,varargin{:});
还是不行，这回我跟蒙了，我是个新手，不太会，谢谢了！

ch_j1985

原帖由 wangdianqun 于 2008-5-6 17:43 发表

                               
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fuction  F=mymfun(x)
f(1)=0.5*x(1).*exp(-0.25*pi*(x-x(2)).^2);
f(2)=sqrt(1+(0.25*pi*x(1).*(x-x(2))).^2.*exp(-0.5*pi*(x-x(2)).^2));
sym x
F(1)=quad(f(1),0,inf);
F(2)=quad(f(2),-inf,inf);
F=[F(1) ...

可以参考这个帖子：
http://www.chinavib.com/forum/viewthread.php?tid=18886&extra=&page=1

wangdianqun

谢谢！真是太好了:!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

superkaka123

我要把权限弄到10啊！

[ 本帖最后由 eight 于 2008-5-12 18:27 编辑 ]

superkaka123

:victory: 我是个新手，不太会，谢谢了！

eight

原帖由 superkaka123 于 2008-5-11 18:39 发表

                               
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:victory: 我是个新手，不太会，谢谢了！

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