title: Convert atan2 value to standard 360-degree-system value
body: <p>Lets say I'm using <code>atan2</code> to get the angle between two vectors.</p>
  
  <p><code>atan2</code> gives a value in radians. I convert it to degrees using a built in function in Java. This gives me a value between <code>0</code> and <code>180</code> degrees or between <code>0</code> and <code>-180</code> (the nature of atan2).</p>
  
  <p>Is there a way to convert the value received with this function (after it's been converted to degrees), to the standard 360-degree-system, without changing the angle - only the way it's written? It would make it easier for me to work with.</p>
  
  <p>Thanks</p>