 	 */
 	public static function isDeltaIdentity(matrix:Matrix):Boolean
 	{
-	    if( matrix.a == 1 && matrix.d == 1 &&
+	    if (matrix.a == 1 && matrix.d == 1 &&
 	    	matrix.b == 0 && matrix.c == 0)
             return true;
         return false;

	 
	    components[2] = Math.atan2( Uy, Ux ) / RADIANS_PER_DEGREES;
	    
	    if(transformX != 0 || transformY != 0)     
	    {
	    	var postTransformCenter:Point = matrix.transformPoint(new Point(transformX,transformY));
	    	components[0] = postTransformCenter.x - transformX;

        
        // Calculate the determinant of the system
        const det:Number = a * d1 - b * c1;
        if (det == 0)
        {
            // No solution in these cases since the matrix
            // collapses all points into a line.
            if (c1 == 0 || a == 0 || a == -c1)
               return null;
               
            if (Math.abs(a * h) - Math.abs(b * w) > 1.0e-9)
               return null; // No solution in this case
               
            // Determinant is zero, the equations (1) & (2) are equivalent and
