Implementation of grid search for a function

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Sardor Butunboev
Sardor Butunboev on 5 Oct 2021
I am trying to run a grid search and find x*. but it gives me "Not enough input arguments".
funktion = @(x) sqrt(x) + 2*sqrt(1-x);
x = [0:0.001:1];
x_star_grid = grid(funktion, x)
function [f_benchmark, domain_max] = grid(funktion, domains)
domain_max = -1e+5;
for i = 1:length(domains)
z= domains(i);
f = feval(funktion, z);
if f>=f_benchmark
f_benchmark = f;
domain_max = domains(i);

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