create a vector with different values and extract the highest values in matlab

main.m
        ```
        v = [10 5 20 15 25];
        ```

        To extract the highest value in the vector, you can use the max function in MATLAB:

        ```
        max_value = max(v);
        ```

        To extract the n number of highest values, you can use the sort function and select the top n values:

        ```
        sorted_v = sort(v, 'descend');
        n = 3;
        top_n_values = sorted_v(1:n);
        ``` 
        The `sort` function sorts the elements of the vector v in descending order and stores the result in the `sorted_v` vector. Then, the top `n` values are selected by indexing into the `sorted_v` vector using the colon operator. If you want to output the indices of these top `n` values rather than the values themselves, you can use the `maxk` function:

        ```
        [top_n_values, indices] = maxk(v, n);
        ```
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