r">x</span><span class="special">)*</span><span class="identifier">pow</span><span class="special">(</span><span class="identifier">x</span><span class="special">,</span> <span class="number">12</span><span class="special">);</span> <span class="special">};</span></code> does
        not.
      </p>
<p>
        Oscillatory integrals, such as the sinc integral, are poorly approximated
        by double-exponential quadrature. Fortunately the error estimates and L1
        norm are massive for these integrals