      *  
      *  @return Returns Point(x,y) or null if no solution exists. 
      * 
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 9
+     *  @playerversion AIR 1.1
+     *  @productversion Flex 3
      */        
     static public function calcUBoundsToFitTBoundsWidth(w:Number,
                                                         matrix:Matrix,

     *  the segment bounding box.
     *  @return Returns the union of the post-transformed quadratic
     *  bezier segment's axis aligned bounding box and the passed in rect.
     */	
    static public function getQBezierSegmentBBox(x0:Number, y0:Number,
                                                 x1:Number, y1:Number,

	 *  @return Returns true when <code>pt == matrix.DeltaTransformPoint(pt)</code>
	 *  for any <code>pt:Point</code> (<code>matrix</code> is identity matrix,
	 *  when disregarding the translation part).   
	 *  
	 *  @langversion 3.0
	 *  @playerversion Flash 9
	 *  @playerversion AIR 1.1
	 *  @productversion Flex 3
	 */
	public static function isDeltaIdentity(matrix:Matrix):Boolean
	{
