Catalan's constant
Meanings
name
- 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…
Word forms
Etymology
Named after French and Belgian mathematician Eugène Charles Catalan.
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