Approximating Catalan's Constant

​
number of of term pairs
shade area equal to Catalan's Constant
Catalan's constant is the alternating sum of the reciprocals of odd squares,
1-1/9+1/25-1/49+1/81+...≈0.915966…
. The area of each green region is the sum of a positive/negative pair of terms. Thus the total green area approaches Catalan's constant. Use the slider to change the number of term pairs considered.

External Links

Catalan's Constant (Wolfram MathWorld)

Permanent Citation

Michael Schreiber
​
​"Approximating Catalan's Constant"​
​http://demonstrations.wolfram.com/ApproximatingCatalansConstant/​
​Wolfram Demonstrations Project​
​Published: September 28, 2007