Very accurate pi approximation
The Endeavour 2025-03-23
Summary:
Yesterday I ran across this approximation for π and posted it on X. π ≈ 3 log(640320) / √163 This approximation is good to 15 decimal places, and so the approximation is exact to within the limits of floating point arithmetic. I said in a follow up comment that the √163 term looked familiar from […]
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