 <li>
          f3(x) = exp(+x*x/2) * exp(-px)/(1+exp(-qx));
        </li>
        <li>
          f4(x) = exp(+x*x/2) * sin ( x^2 );
        </li>
        <li>
          f5(x) = exp(+x*x/2) * 1 / (1+x^2) sqrt (4+3x^2) );
        </li>
        <li>
          f6(x) = exp(-x*x/2) * x^m;
        </li>
        <li>
          f7(x) = x^2 cos(x) exp(-x*x/2);
        </li>
        <li>
          f8(x) = sqrt ( 1 + x * x / 2 );
        </li>
      </ol>
    </p>

    <p>
      The library includes not just the integ