fl">2.5</span>, <span class="fl">0.75</span>, <span class="va">lowerbound</span>, <span class="va">upperbound</span>, <span class="va">items</span><span class="op">)</span>,</span></span>
<span class="r-in"><span>  x2 <span class="op">=</span> <span class="fu"><a href="lfast.html">lfast</a></span><span class="op">(</span><span class="va">n</span>, <span class="fl">3.0</span>, <span class="fl">1.50</span>, <span class="va">lowerbound</span>, <span class="va">upperbound</span>, <span class="va">items</span><s