Function brown

dlib/test/optimization_test_functions.cpp:290–303

    // ----------------------------------------------------------------------------------------

        double brown ( const matrix<double,4,1>& x)
        {
            double f;
            int i;

            f = 0;

            for (i = 1; i <= 20; ++i)
            {
                f += std::pow(brown_residual(i, x), 2);
            }

            return f;
        }

    // ----------------------------------------------------------------------------------------