List questions from pi

Published on 09 May 2017 - 19:27

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$\pi$ as an Infinite Series using Taylor Expansion on Equation of a Circle

Published on 17 May 2017 - 2:19

309

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A series for $\frac{355}{113}-\pi$

Published on 27 Mar 2026 - 2:01

146

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Does $\pi$ have infinitely many prime prefixes?

Published on 20 May 2017 - 17:22

2k

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Why is $\frac{2ln(i)}{i}=\pi$ true?

Published on 23 May 2017 - 7:53

83

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Why PI is an irrational number?

Published on 31 Mar 2026 - 11:23

727

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Very slowly converging formulas for $\pi$

Published on 24 May 2017 - 12:57

189

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How must have Liu Xin calculated $\pi$?

Published on 25 May 2017 - 10:44

704

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$\pi$ when not in base 10

Published on 25 Mar 2026 - 16:45

82

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How to find the measure of the sides of all kinds of triangles. Can it be proven?

Published on 27 May 2017 - 14:27

100

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A conjectured continued fraction related to a 2F1 hypergeometric function (and a formula for π)

Published on 29 Mar 2026 - 17:27

86

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Infinitely many expresions for $\pi$

Published on 04 Jun 2017 - 10:45

267

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A 4-D sphere: what is the area??

Published on 08 Jun 2017 - 15:35

1k

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False proof of $\pi=0$

Published on 08 Jun 2017 - 17:29

322

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proof $\sum_{n=1}^∞ \frac{1}{n^2} = \frac{\pi^2}{6}$ with partial fraction expansion

Published on 25 Mar 2026 - 18:50

List Question

How can $\pi$ be irrational if it can be calculated using an infinite series of rational numbers?

$\pi$ as an Infinite Series using Taylor Expansion on Equation of a Circle

A series for $\frac{355}{113}-\pi$

Does $\pi$ have infinitely many prime prefixes?

Why is $\frac{2ln(i)}{i}=\pi$ true?

Why PI is an irrational number?

Very slowly converging formulas for $\pi$

How must have Liu Xin calculated $\pi$?

$\pi$ when not in base 10

How to find the measure of the sides of all kinds of triangles. Can it be proven?

A conjectured continued fraction related to a 2F1 hypergeometric function (and a formula for π)

Infinitely many expresions for $\pi$

A 4-D sphere: what is the area??

False proof of $\pi=0$

proof $\sum_{n=1}^∞ \frac{1}{n^2} = \frac{\pi^2}{6}$ with partial fraction expansion

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