title: What is the operator `.*` doing in matlab?
body: <p>Let's say given 2 vectors:</p>
  
  <p><code>a = [1;2;3], b = [4;5;6]</code>.</p>
  
  <p>The operaton <code>a*b</code> is not acceptable because of matrix multipiclation definition.</p>
  
  <p>But I can see that <code>a.*b</code> is acceptable and resulting <code>[4;10; 18]</code>.</p>
  
  <p>What is the <code>.*</code> operation doing?</p>
  
  <p><a href="https://www.google.co.il/#q=.%2a%20in%20matlab" rel="nofollow">Tried to google but no result</a></p>
  
  <p>Thanks in advance.</p>