matlab fmincon 程序是：%首先编写目标函数的﹒m文件：function f=myfun(y);f=exp(

matlab fmincon
程序是：
%首先编写目标函数的﹒m文件：
function f=myfun(y);
f=exp(y(1)+y(2))*3*exp(-y(4));
%调用函数fmincon：
>> y0=[1.79,2.99,-0.22,-0.0622]; %起始点
>> A=[-1.5,-1.5,2,-0.5;-3.0,-2,2,-1];
>> b=[-5.2779;-7.0346];
>> lb=[0.693,2.833,-0.51,-0.0622];
>> ub=[3.0,3.912,0.18,-0.00549];
>>[y,fval,exitflag,output]=fmincon(@myfun,y0,A,b,[],[],lb,ub)
运行以后,出错
>>[y,fval]=fmincon(@myfun,y0,A,b,[],[],lb,ub)
|
Error:Unexpected MATLAB operator.
请问问题出现在哪里,怎么改呢