Proper implementation and use of fmincon
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I need some guidance for this following problem. Where function f is defined as
f= x(1)*x(2)
x(1)= [1 2 3 4]
x(2)= [6 7 8]
Function f needs to be optimized using fmincon such as
fmin < f > fmax
My concern is how should I set or define constraint for given range of inputs {x(1) & x(2)}
I appreciate your time and help on this.
Thanks
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Matt Kindig
2012-7-12
Hi Mitesh,
I'm confused as to your problem formulation. The x(1)=[1 2 3 4] and x(2)=[6 7 8] are not valid MATLAB. What does this values indicate? Also, what are fmin and fmax?
When you save you have a given range of inputs {x(1) & x(2)}, what does that mean? Do you mean that x(1) and x(2) have upper and/or lower bounds?
Please clarify for us.
Thanks
Richard Brown
2012-7-13
I presume [1 2 3 4] and [6 7 8] are sets of possible values for x1 and x2. If your problem is only small, then you can use brute force
[X1, X2] = meshgrid([1 2 3 4], [6 7 8]);
F = X1 .* X2;
I = find(F > fmin & F < fmax);
[minval, j] = min(F(I));
minidx = I(j);
另请参阅
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