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Levi Pearson 2014-01-25 00:37:38 -07:00
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math/computational_geometry/notes.page
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@ -90,5 +90,5 @@ $P$ if and only if $P$ is a convex polygon.
**Theorem 1.19** **Theorem 1.19**
: The number of triangulations of a convex polygon with $n + 2$ : The number of triangulations of a convex polygon with $n + 2$
vertices is the Catalan number $$ C_n = \frac{1, n + 1}{n + 1 \choose vertices is the Catalan number $$ C_n = \frac{1}{n + 1}{n + 1 \choose
n} $$ n} $$