Matlab outer file function

Question

Dawid 2023-9-6

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2017521-matlab-outer-file-function

评论： Dawid 2023-9-10

so i have this code in my main file

nonlcon=@ogr_niel1;
x0=[1 1 1];
fun=@(x)exp(x(1)) *(4*x(1)^2 + 2*x(2)^2 + 4*x(1)*x(2));
A=[];
b=[];
Aeq=[];
beq=[];
lb=[];
ub=[];
x=fmincon(fun,x0,A,b,Aeq,beq,lb,ub,nonlcon)

and this is my outer file

function [c.ceq] = ogr_niel1(x)
Invalid use of operator.
c=[x(1)*x(2)-x(1)-x(2)+1.5;-x(1)*x(2)-10]
ceq=[];
end

and it tells me that im missing a closing or there invalid syntax and i rly don't see what im doing wrong here. Sorry if thats something obvious i wasted a day trying to solve it and i just don't understand where mistake is

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Answer 1

MarKf 2023-9-6

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2017521-matlab-outer-file-function#answer_1303306

编辑：MarKf 2023-9-6

在 MATLAB Online 中打开

Invalid use of operator "."

You can't tell a function to make an output a struct (since that might break things, you can only assign variables), but maybe you meant to put a comma there since you do not create a struct in the funtion but just 2 variables?

function [c, ceq] = ogr_niel1(x)

That's probably the case (since otherwise you'd just assign a struct field when calling the function in your script, but you are using it as a handle).