an class="va">p3</span><span class="op">)</span>, <span class="fu"><a href="solve.html">solve</a></span><span class="op">(</span><span class="va">p4</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rspatial.github.io/terra/reference/names.html" class="external-link">names</a></span><span class="op">(</span><span class="va">s1</span><span class="op">)</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io