# Math Help - Nth derivative

1. ## Nth derivative

is there any other way of computing the nth deriviative of $f(g(x))$ besides Faa di Bruno's formula?

2. Hello,

As far as i can see, i find Faa di Bruno's formula indigest
Especially because it's just an interpretation of the general chain rule... So his would be the one you have to use.
D'you have a particular function you want to get the nth derivative ?

3. As Moo said, the rule is just offspring of the all mighty Chain Rule.

4. ## No

it just came up in a "proof" of sorts and I needed a good substitution for $f(g(x))^{(n)}$

5. This is certainly not a good substitution... I mean if you're doing an exercise, you will generally be asked to find an iteration relation

6. ## Yeah

that is why I am seeking a good alternative to Bruno's formula