title: Javascript Math Functions
body: <p>How can I use these JavaScript <a href="http://www.w3schools.com/jsref/jsref_obj_math.asp" rel="nofollow">math functions</a> ?</p>
  
  <p>For example, I want to compute the square of all <code>&lt;input&gt;</code> values in a form, without submiting the form.</p>
  
  <p>Can you give a little example? Thank you.</p>