title: Calling atan function on Blackberry 4.2 JDE
body: <p>I need to calculate the arc tan value from my Blackberry Java app. Unfortunately, the blackberry 4.2 api doesn't have the Math.atan() function. Version 4.6 of the Blackberry JDE has it, but not 4.2.</p>
  
  <p>Does anyone know of a workaround to calculate atan?</p>