In article <38e0e21e@news.povray.org>, ron### [at] povrayorg says...
> On Mon, 27 Mar 2000 22:46:28 -0000, Bjorn Jonsson wrote:
> >(2) Given two lines through three points (you can think of this as two 
> >out of three sides on a triangle), determine the center and radius of a 
> >circle which 'touches' one of the lines at a point with a known distance 
> >from the point common to the two lines.
> 
> As written, there are an infinite number of solutions to this problem;
> one is the circle with its center at the point common to the two lines 
> and with a radius of the 'known distance.'
> 
> Even if you specify that 'touches' means 'is tangent to,' there are an
> infinite number of solutions.  Do you mean one that is tangent to both
> lines?

Oops... yes, there is an error in what I wrote above. I meant that the 
circle is tangential to *both* lines, not just one of them.

Thanks for correcting this rather silly error.

Bjorn

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