"Duncan Adamson" <dja### [at] docicacuk> wrote in message
news:3bb4754e$1@news.povray.org...
> Hang a rope from two points <0,1,0> and <1,1,0>
> The shape it makes is a caterary
>
> Rotate this shape around the x axis to get a catenoid

>(formula radius =
> (1/a)cosh(ax))

Is this the formula for a caterary or a catenoid? I'm looking for the formula
for a caterary.

Regards,

- Nekar

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