4 ms·
The concept he's talking about is http://en.wikipedia.org/wiki/Circle_inversion http://en.wikipedia.org/wiki/Circle_inversion; http://mathworld.wolfram.com/Inve
by dch 14y ago
The concept he's talking about is http://en.wikipedia.org/wiki/Circle_inversion http://en.wikipedia.org/wiki/Circle_inversion; http://mathworld.wolfram.com/Inversion.html http://mathworld.wolfram.com/Inversion.html has a bit more detail.
- kombine 14y agoThanks, and the problem in question is actually http://en.wikipedia.org/wiki/Problem_of_Apollonius http://en.wikipedia.org/wiki/Problem_of_Apollonius