eights:  56 (39 variable)</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> initial  value 751.371544 </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  10 value 528.822078</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  20 value 398.135469</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  30 value 365.460839</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  40 value 360.614925</span>
<span class="r-out co"><span cla