An error 'matlabexecutionerror' occurred when i use 'min' in type optim.prob​lemdef.Opt​imizationE​xpression

    prob = optimproblem('ObjectiveSense','maximize');
    
    A = optimvar('A', 2, 54, 41, 'Type', 'continuous', 'LowerBound', 0);
    
    X = sum(squeeze(A(1,:,:)) .* M); % 1*41

Unrecognized function or variable 'M'.

    Y = sum(squeeze(A(2,:,:)) .* N);

    f = 0.5*min(X+X,X+C)*P'-sum(sum(squeeze(A(1,:,:)).*U));  % It raises an error here when I try to use min(X+X,X+C).
    g = 0.5*min(Y+Y,D+Y)*Q'-sum(sum(squeeze(A(2,:,:)).*V)); 
    

Answer 1

[Torsten]

"min" is not a supported operation for optimization variables:

https://uk.mathworks.com/help/optim/ug/supported-operations-on-optimization-variables-expressions.html

You will have to use "fcn2optimexpr" instead:

https://uk.mathworks.com/help/optim/ug/fcn2optimexpr.html

[昀泽]

Oh! Thanks for your help! Now it works!