MATLAB: How to insert values into parameter and not function

function

Hi everybody,
I hope somebody can help me out: I want to create a constraint function for fmincon with an input x which comprises of six symbolic variables x1 – x6. The variable 'parameter' depends on x which is why I want to insert their values into 'parameter'. The only way I found out is to create a function as shown below:
function [c, ceq] = constraints(x)
load ('File.mat','parameter');
parameter_function = matlabFunction(parameter);
c(1) = abs(parameter_function(x)); %Constraint
ceq = [];
end
This, however, takes a lot of time to run the code and I am quite sure because of the function creation. For this reason I would like to ask if anybody knows a way to insert the x values into 'parameter' without needing to create the function.
Thanks in advance!
Nicolas

Best Answer

   load ('File.mat','parameter');
   parameter_function = matlabFunction(parameter);
x = fmincon(fun,x0,A,b,Aeq,beq,lb,ub, @(x) deal(parameter_function(x)^2 , [] ) )
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