Hi,

I have an optimization problem which I considered it as a mixed integer and a 
multiobjective OPT one:

Assume that, I have a system S = S(x1,x2,...,xm,r1,r2,...,rp). 

With each set of R, I can determine the vector X = g(R). Then compute the value 
of f(X): 
f(X) = {0,1} ; f(X) = 0 if any xi violates certain constraints, f(X) = 1, if 
all xi satisfy those constraints. Here, X = (x1,x2,...,xm) 
Note that, some of the constraints cannot be expressed as a (continuous) 
function of R. That is why I governthem as a logic function.


My goals are to find minimum and maximum values of the decision variables R = 
(r1,r2,...,rp) 


(minimize + maximize) R 


subject to:  { f(X) = 1 }


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Can the above problem be solved using NLopt package? 


Thanks,
Quan
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