template <
        typename search_strategy_type,
        typename stop_strategy_type,
        typename funct,
        typename T
        >
    double find_min_using_approximate_derivatives (
        search_strategy_type search_strategy,
        stop_strategy_type stop_strategy,
        const funct& f,
        T& x,
        double min_f,
        double derivative_eps = 1e-7
    )