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20 bytes added, 00:21, October 8, 2005
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Here is some math.
<math>\[ \pi = \sum_{i=0}^\infty \frac{1}{16^i} \left ( \frac{4}{8i+1} - \frac{2}{8i+4} - \frac{1}{8i+5} - \frac{1}{8i+6} \right ) \]</math>
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