Ok, could someone please explain this to me, for I have tried to find it on the internet but everywhere (especially the wikipedia) article is written from an analysis point of view. Functionally I would like to know how it works.

I know that

If

That by Lebniz

So now here is where I am in the dark, does this imply that lets say we integrate the right hand side and get

(obviously there will be no more x's)[/tex]

Then we have that

So

Like

Please if anyone could enlighten me, I have been curious about this method for a while and cannot seem to find a comprehensible source. So if somone could explain it that would be great.

Mathstud