umber">7</span>
    <span class="identifier">root2</span> <span class="special">=</span> <span class="special">-</span><span class="number">7</span>
    <span class="identifier">sample1</span> <span class="special">=</span> <span class="number">4.66289</span>
    <span class="identifier">sample2</span> <span class="special">=</span> <span class="number">1.70234</span>
<span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span clas