List questions from pi

Published on 07 Mar 2026 - 16:52

741

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Proofs without words of some well-known historical values of $\pi$?

Published on 28 Mar 2026 - 6:13

225

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A question about $\pi$

Published on 28 Nov 2013 - 15:57

58.1k

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How is the value of $\pi$ ( Pi ) actually calculated?

Published on 01 Dec 2013 - 14:40

92

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Generalization of some infinite series containing binomial coefficients

Published on 03 Dec 2013 - 7:27

1.1k

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Is π unusually close to 7920/2521?

Published on 27 Mar 2026 - 1:44

418

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How to prove $\sum_{n=0}^\infty \left(\frac{(2n)!}{(n!)^2}\right)^3\cdot \frac{42n+5}{2^{12n+4}}=\frac1\pi$?

Published on 09 Dec 2013 - 21:50

229

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Why does it help to use $640320^3 = 8\cdot 100100025\cdot 327843840$ when you calculate $\pi$?

Published on 09 Dec 2013 - 23:20

84

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Derivative of Trig. Function

Published on 11 Dec 2013 - 21:38

1.2k

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Can integration get the real value of $\pi$?

Published on 13 Dec 2013 - 2:20

122

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question about an inequality in calculus

Published on 15 Dec 2013 - 13:48

524

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Double Integration Problem for Buffon's Needle experiment

Published on 17 Dec 2013 - 13:41

603

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Proving that $\left(\frac{\pi}{2}\right)^{2}=1+\sum_{k=1}^{\infty}\frac{(2k-1)\zeta(2k)}{2^{2k-1}}$.

Published on 18 Dec 2013 - 16:22

1.2k

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How to demonstrate the equality of these integral representations of $\pi$?

Published on 18 Dec 2013 - 20:49

136

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For what values of $b\in \mathbb R$ is $\pi-b$ rational?

Published on 27 Mar 2026 - 1:46

List Question

What is the fastest way to $\pi$?

Proofs without words of some well-known historical values of $\pi$?

A question about $\pi$

How is the value of $\pi$ ( Pi ) actually calculated?

Generalization of some infinite series containing binomial coefficients

Is π unusually close to 7920/2521?

How to prove $\sum_{n=0}^\infty \left(\frac{(2n)!}{(n!)^2}\right)^3\cdot \frac{42n+5}{2^{12n+4}}=\frac1\pi$?

Why does it help to use $640320^3 = 8\cdot 100100025\cdot 327843840$ when you calculate $\pi$?

Derivative of Trig. Function

Can integration get the real value of $\pi$?

question about an inequality in calculus

Double Integration Problem for Buffon's Needle experiment

Proving that $\left(\frac{\pi}{2}\right)^{2}=1+\sum_{k=1}^{\infty}\frac{(2k-1)\zeta(2k)}{2^{2k-1}}$.

How to demonstrate the equality of these integral representations of $\pi$?

For what values of $b\in \mathbb R$ is $\pi-b$ rational?

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