span><span class="identifier">f2</span><span class="special">,</span> <span class="number">0</span><span class="special">,</span> <span class="number">1</span><span class="special">);</span>
</pre>
<p>
      Which yields 0.2106572512258069881080923020669, which is accurate to 5e-28.
    </p>
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