class="page-header">
      <img src="" class="logo" alt=""><h1>Test whether an object is an rvec</h1>
      
      <div class="d-none name"><code>is_rvec.Rd</code></div>
    </div>

    <div class="ref-description section level2">
    <p>Test whether <code>x</code> inherits from
class <code>"rvec"</code>.</p>
    </div>

    <div class="section level2">
    <h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><s