title: Multiple conditions using 'or' in numpy array
body: <p>So I have these conditions:</p>
  <blockquote>
  <p>A = 0 to 10 <strong>OR</strong> 40 to 60</p>
  <p>B = 20 to 50</p>
  </blockquote>
  <p>and I have this code:</p>
  <pre><code>area1 = N.where((A&gt;0) &amp; (A&lt;10)),1,0)
  area2 = N.where((B&gt;20) &amp; (B&lt;50)),1,0)
  </code></pre>
  <p>My question is: how do I do '<strong>OR</strong>' condition in numpy?</p>