title: What is Armadillo+Atlas , Armadillo+OpenBLAS, Armadillo+uBLAS, Armadillo+MKL?
body: <p>In many website they talk about Armadillo+something else. What do they mean?</p>
  
  <p>I use Armadillo library in form of</p>
  
  <pre><code>#include &lt;armadillo&gt;
  </code></pre>
  
  <p>in Linux environment. </p>
  
  <p>In this website </p>
  
  <p><a href="http://nghiaho.com/?p=1726" rel="nofollow">http://nghiaho.com/?p=1726</a></p>
  
  <p><code>Armadillo+OpenBLAS</code> is mentioned. What do they mean? How to use <code>Armadillo+OpenBLAS</code>?</p>
  
  <hr>
  
  <p><strong>UPDATE</strong></p>
  
  <p>Now is more than a year later. I just add this point that <code>Armadillo</code> is a wrapper over implementations such as <code>BLAS</code> or <code>OpenBLAS</code>. It is not a matrix operation implementation.</p>