) - 1 ) )^4;
        </li>
        <li>
          f(x) = ( sum ( x(1:m) ) )^5;
        </li>
        <li>
          f(x) = ( sum ( 2 * x(1:m) - 1 ) )^6;
        </li>
        <li>
          f(x) = 1 / ( 1 + sum ( 2 * x(1:m) ) );
        </li>
        <li>
          f(x) = product ( 2 * abs ( 2 * x(1:m) - 1 ) );
        </li>
        <li>
          f(x) = product ( pi / 2 ) * sin ( pi * x(1:m) );
        </li>
        <li>
          f(x) = ( sin ( (pi/4) * sum ( x(1:m) ) ) )^2;
        </li>
        <li>
   