&gt;</span> iter  20 value 383.451954</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  30 value 357.141126</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  40 value 352.817845</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  50 value 352.691687</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> final  value 352.691659 </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> converged</span>
<span class="r-out co"><span class="r-