pi is actually an infinite product
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What are the residues of the gamma function?
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Calculus Is Overrated – It is Just Basic Math
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Complex Logarithm, Branch Points, and Branch Cuts
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An incredible integral solved using Feynman's trick
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a great first infinite product!
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How Paul Erdős Cracked This Geometry Problem | The Anning-Erdős Theorem
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This integral breaks math
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