20 value 1863.605952</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  30 value 1714.408226</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  40 value 1702.860135</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  50 value 1697.085071</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  60 value 1696.693269</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  70 value 1696.690378</span>
<span class="r-out co"><span class="r-p