eights:  56 (39 variable)</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> initial  value 748.598955 </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  10 value 483.532925</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  20 value 388.721848</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  30 value 365.509561</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  40 value 355.510824</span>
<span class="r-out co"><span cla