able>


    <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
    <pre class="examples"><div class='input'><span class='kw'>if</span> <span class='op'>(</span><span class='fu'><a href='has_sympy.html'>has_sympy</a></span><span class='op'>(</span><span class='op'>)</span><span class='op'>)</span> <span class='op'>{</span>
  <span class='va'>A</span> <span class='op'>&lt;-</span> <span class='fu'><a href='https://rdrr.io/r/base/matrix.html'>matrix</a></span><span class='