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Original Articles

Some New Formulas for π

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Pages 441-456 | Published online: 05 Apr 2012
 

Abstract

We show how to find series expansions for π of the form π = Σ n =0 S(n)/ an , where S(n) is some polynomial in n (depending on m, p, a). We prove that there exist such expansions for m = 8k, p = 4k, a = (−4)k, for any k, and give explicit examples for such expansions for small values of m, p, and a.

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