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  • '''Pi''' is an [[irrational number]] (in fact, [[transcendental number]], as proved by ...places, such as in the sum <math>\sum_{n=1}^\infty \frac{1}{n^2}=\frac{\pi^2}{6}</math>. Some common [[fraction]]al approximations for pi are <math>\fr
    8 KB (1,469 words) - 20:11, 16 September 2022