Let the 
th
composition of a function 
be denoted 
, such that 
and 
. Denote the composition
of 
and 
by 
,
and define
 |
(1)
|
Let
 |  |  |
(2)
|
 |  |  |
(3)
|
 |  |  |
(4)
|
and
 |  |  |
(5)
|
 |  |  |
(6)
|
Then if 
(i.e., 
),
 |  |  |
(7)
|
 |  |  |
(8)
|
where 
and composition
is done in terms of components.
