> Erm... the circumference is 2*pi*r, the *area* of the circle pi*r^2.
Anyway,
> as far as I can tell the reasoning is right, since you're interested in
the
> way the area of "infinitesimally thin" rings of radii r (or x) grows.
You're right. I thought something was wrong. I kept going over that and
wondering why the circumference even mattered. Thanks.
- Slime
[ http://www.slimeland.com/ ]
