MATLAB: How to add parameters to fmincon

Question

Hello, I am trying to use fmincon but add extra parameters to the function. The function is not a series of equations, therefore it is not like adding constraints. It is rather a parameter dependent computational problem.

lb = [0.1,2]; %left bound

rb = [0.45,3]; %right bound

x0 = lb;

[xopt,funval] = fmincon(@(x1,x2) fun(x1,x2,a,b),x0,[],[],[],[],lb,rb);

what am I doing wrong? Why do I get the error "Not enough input arguments."?

I have just solved a very similar problem but for 1-variable function using fminbnd and it worked!!

a=10;

[x,funval] = fminbnd (@(x) fun(a,x),1,1.5);

I just need a 2-variable solution. Am I using the wrong function? What can be used, if so?

Thank you for your help!

Answer 1

[xopt,funval] = fmincon(@(x) fun(x(1),x(2),a,b),x0,[],[],[],[],lb,rb);