Re: Start of derivatives docs

[Neil Booth <neil daikokuya demon co uk>]

Morten Welinder wrote:-

> I don't see why we cannot chagne the interface if we feel like it.
> There is, AFAIK, no interface we are trying to emulate.

I was just worried about existing users, in case they already had 50MB sheets
using it 8-)

I'll write docs for the current version, and Jody said he'll change the
interface next version and we can probably warn about existing usage.

Neil.