Revision: 40543
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at February 3, 2011 14:44 by NihilistDandy
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(expt (- 100 (/ (+ (expt 2125 3) (expt 214 3) (expt 30 3) (expt 37 2)) (expt 82 5))) .25)
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http://mathworld.wolfram.com/PiApproximations.html
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Based on the pi approximation (100 - ((2125^3 + 214^3 + 30^3 + 37^2)/(82^5)))^(1/4), referenced in equation 57 at the referenced URL.
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Pi Approximation in Scheme
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Scheme