      * fraction elapsed from start to end, like this:</p>
      * 
      * <p><code>return startValue + fraction * (endValue - startValue);</code></p>
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 10
+     *  @playerversion AIR 1.5
+     *  @productversion Flex 4
      */
     public function interpolate(fraction:Number, startValue:Object, 
         endValue:Object):Object

/**
 * The NumberInterpolator class provides interpolation between
 * <code>Number</code> start and end values. 
 */
public class NumberInterpolator implements IInterpolator
{

    /**
     * Returns the singleton of this class. Since all NumberInterpolators
     * have the same behavior, there is no need for more than one instance.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    public static function getInstance():NumberInterpolator
    {
