"Bald Eagle" <cre### [at] netscapenet> wrote:
> > BTW, it's not clear to me why he specified radians rather than degrees, as
> > a camera angle is specified in degrees(?), or something similar.
> > >
>
>
> The angle IS in degrees, but tan () acts on radians.
> That's why it needs to get converted to radians first, before performing the
> tan() function.

Oh, of course; thanks. The 'radians' keyword (or alternately 'degrees') is a
CONVERTER.

I forgot :-[

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