The concept he's talking about is http://en.wikipedia.org/wiki/Circle_inversion;... | Hacker News

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dch on Nov 7, 2012 | parent | context | favorite | on: The Fifth problem: math and anti-Semitism in the S...

The concept he's talking about is http://en.wikipedia.org/wiki/Circle_inversion; http://mathworld.wolfram.com/Inversion.html has a bit more detail.

kombine on Nov 7, 2012 [–]

Thanks, and the problem in question is actually http://en.wikipedia.org/wiki/Problem_of_Apollonius

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