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Levi Pearson 2014-01-24 23:40:59 -07:00
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math/computational_geometry/notes.page
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@ -30,5 +30,5 @@ two parts. In particular, the two components of $\Bbb{R}^2\setminus
A point $x$ is *interior* if a ray through it in a fixed direction not A point $x$ is *interior* if a ray through it in a fixed direction not
parallel to an edge passes through an odd number of edges. parallel to an edge passes through an odd number of edges.
A point $x$ is *exterior* if a ray through it ... etc ... through an A point $x$ is *exterior* if a ray through it ... etc ... passes
even number of edges. through an even number of edges.