Sigmund Kyrre Aas wrote:

> Darn. Both are wrong. Setting R=r should be equal to a sphere, but it's
> not:
> A!=-4*pi*r^2( (sin(1)-pi )
> V!=2*pi^2*r^3

Setting r=R should actually dive you the volume and area of a horn thorus:
A=4*pi^2*r^2
V=2*pi^2*r^3

So you were actually closer than you thought.  Setting R=0 should give you
a sphere.

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