find global minimum in matlab

To find the global minimum of a function in MATLAB, you can use the fminsearch function. This function uses the Nelder-Mead simplex algorithm to find the minimum of a given function.

To use fminsearch, you need to define an anonymous function that takes the function to minimize as its input. Here's an example:

main.m
% Define the function to minimize
f = @(x) x.^2 + sin(x);

% Use fminsearch to find the global minimum of f
xmin = fminsearch(f, 0);
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In this example, we define the function f as x.^2 + sin(x), which is the function we want to minimize. We then pass f to fminsearch, along with an initial guess for the minimum (in this case, 0). The output xmin will be the location of the global minimum of f.

Note that fminsearch may not always find the global minimum of a function, especially if the function is not well-behaved (e.g. has multiple local minima). In those cases, you may need to use a more advanced optimization algorithm.