eal number to convert
                    </p>
                    <p>
                      <code class="computeroutput"><span class="identifier">force_sign</span></code>
                      is a flag indicating whether a sign has to be generated even
                      for non-negative numbers (this is the same as has been returned
                      from the function <code class="computeroutput"><span class="identifier">force_sign</span><span class="special">()</span></code> described above)
    