title: randomly pick number from a matrix in matlab
body: <p>How can i randomly pick a number from the given following matrix below?</p>
  
  <pre><code>    A=[0.06 0.47 0.47]
  </code></pre>
  
  <p>I just want to randomly pick a number from the matrix above. I am doing this in matlab enviornment. please help.
   Also, Is it possible assume a variable in matlab that tends to zero, like we do in limits?</p>