Talk:Finite difference

The description of finite difference methods seems somewhat muddled - there appears to be a confusion between particular finite difference methods and the general definition of the term. It seems to me that at the very least the article ought to partition itself a little better - for instance, if difference operators are mentioned, it would be nice to at least indicate that there is more than one and that all are derived from Taylor expansions. I don't necessarily feel myself qualified to make any modifications that might be necessary - if anyone is, then perhaps they could edit this topic?