m文件：
function f=fun3(x)
F = 1300;
E = 2.06e+5;
u=2;
f=x(1)*x(2)^3/x(3)^3;
约束：
function [c,ceq]=confun(x)
F = 1300;
E = 2.06e+5;
u=2;
c=[46-u*x(3)/x(2)*sqrt(12);F-pi^2*E*x(1)*x(2)^3/12/(u*x(3))^2];
ceq=[];
命令：
clear
x0=[150,1.5,240];
A=[];
b=[];
Aeq=[];Beq=[];
lb=[100,1,10];ub=[390,2,500];
options=optimset('largescale','off');
[x,fval]=fmincon('fun3',x0,A,b,Aeq,Beq,lb,ub,'confun',options)
请教各位大侠，我的程序问题出在哪里？如何修改？
结果：
Optimization terminated successfully:
 Search direction less than 2*options.TolX and
  maximum constraint violation is less than options.TolCon
Active Constraints:
     5


x =

  237.3371    2.0000  130.8289


fval =

  8.4790e-004
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[[it] 本帖最后由 hxgcom 于 2008-9-24 10:36 编辑 [/it]]