I try to minimize a function

the function is: function f=obj(x) f=1-x(1)-x(2);

here are the constrained function [c, ceq]=confun(x) c=[x(1)-1; x(2)-1; -x(1); -x(2)]; ceq=0.2^2*x(1)^2+0.1^2*x(2)^2+2*0.1*0.2*0.5*x(1)*x(2)-0.15^2;

but when I run the following program it doesn't not work

x0=[0;0.25]; options = optimoptions(@fmincon); [x,fval] = ... fmincon(@objfun,x0,[],[],[],[],[],[],@confun,options)

[John D'Errico]

Don't just say it does not work. WHAT DOES IT DO? Why do you think it does not work? It MIGHT be something as simple as the possibility that you named your function obj, but then you pass in @objfun into fmincon. Is it possible that the two are not the same thing?