最終更新日：2024/08/08
(mathematics) The number G=𝛽(2)=∑ₙ₌₀ ᪲((-1)ⁿ)/((2n+1)²)=1/(1²)-1/(3²)+1/(5²)-1/(7²)+1/(9²)-⋯, where β is the Dirichlet beta function, with a value of approximately 0.915965594177…
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Catalan's constant
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Catalan's constant
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